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I have a corporate website that is currently lagging behind on Google’s PageSpeed Insights. On mobile, the Largest Contentful Paint sits at 6.2 s, First Contentful Paint at 4.1 s, the Speed Index also at 4.1 s, and Total Blocking Time hovers around 270 ms (CLS is already fine at 0). I need those numbers brought comfortably into the green. The biggest pain points seem to come from heavy-handed JavaScript and bulky style sheets, so your main task is to refactor, defer, compress, or otherwise tame the existing JS & CSS without breaking the site’s functionality or design consistency. I’m particularly concerned with the homepage, as that’s where most visitors land and where I see the sharpest drop-off. You’re free to use any proven optimisation techniques—code splitting, async loading, tree-shaking, critical-CSS extraction, or smarter bundling in Webpack/Vite—so long as the end result is measurable. I’ll consider the job complete once the homepage scores noticeably better on PageSpeed, with LCP under 2.5 s and Total Blocking Time below 150 ms on standard mobile tests. Please tell me how you plan to approach the script and style overhaul, any tools you typically rely on (e.g. Lighthouse CLI, Webpack plugins, PurgeCSS, etc.), and roughly how long you expect the improvements to take.
Project ID: 40373108
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67 freelancers are bidding on average ₹7,541 INR for this job

★★★★★★ START NOW ★★★★★★ Hello, I'll optimize your site Guaranteed 90+ score on Google Page Speed, A+ grade in GtMetrix with 2-3 seconds maximum loading time for permanent. You will get these things in my Advance Speed optimization:- 1: Images will be properly optimized. 2: CSS & JS will be minified. 3: HTML will be minimized. 4: Remove unnecessary codes from your site without breaking the site. 5: Deferred javascript on larger size elements. 6: Database will be Optimized I'm a professional Website optimizer and have more than 6 years of experience in it. I will do this project in 6hrs. I optimized almost 100+ websites and gave my clients 100% satisfaction. Hope you will give me a chance to work with you. Looking forward to working with you. Regards, Sunil Kumar S.
₹7,000 INR in 2 days
7.5
7.5

As an experienced Full Stack Developer and Digital Solutions Expert with over a decade of professional experience, I can confidently say that I'm the perfect fit for your project. And let me assure you, resolving your core web vitals issue is right up my alley. Throughout my career, I've successfully optimized numerous websites for high performance while keeping their functionality intact. I'm well-versed in HTML, HTML5, and JavaScript—essential skills for precisely tackling your task of refactoring, deferring, compressing or otherwise optimizing the existing JS and CSS. In particular, I have extensive knowledge of proven optimization techniques like code splitting, async loading, tree-shaking, critical-CSS extraction and smarter bundling in Webpack/Vite. To measure and track performance improvements effectively, I often use tools like Lighthouse CLI. Moreover, working with Webpack plugins and PurgeCSS has become a norm for me to enhance website performance without compromising functionality or design consistency. Trust me to get your homepage back on track, ensuring LCP under 2.5s and Total Blocking Time below 150 ms on standard mobile tests. Let's create a faster browsing experience together!
₹17,500 INR in 7 days
6.4
6.4

Hello, I appreciate you sharing your project details with me. I'm eager to assist in turning your ideas into reality. With over 8 years of experience as a WordPress developer, I specialize in performance optimization and Core Web Vitals improvements that align seamlessly with your business objectives. My background includes fixing heavy JS/CSS bottlenecks and bringing PageSpeed scores into the green without breaking design or functionality. I can work with you to systematically improve your homepage performance with a clear approach: • **Audit & Benchmarking** – Lighthouse CLI + PageSpeed Insights to identify render-blocking assets and bottlenecks • **JavaScript Optimization** – Defer/async non-critical JS, code splitting, tree-shaking, and reducing unused JS (via Webpack/Vite) • **CSS Optimization** – Extract critical CSS, defer non-critical styles, and remove unused CSS using tools like PurgeCSS • **Asset Optimization** – Minification, compression (Gzip/Brotli), lazy loading, and font optimization • **Performance Enhancements** – Preloading key resources, reducing main-thread work, and improving server response if needed **Expected Outcome:** * LCP under 2.5s * TBT below 150ms * Significant improvement in mobile PageSpeed score **Timeline:** 2–4 days depending on current code complexity and testing iterations I look forward to the chance to work together and help make your project a success. Warm regards, Sush
₹12,500 INR in 5 days
6.3
6.3

Hi, I can optimize your website to bring LCP < 2.5s and TBT < 150ms without breaking design or functionality. ? Approach Minify & defer unused JS/CSS (remove render-blocking) Critical CSS extraction + async loading Reduce JS execution (code splitting, lazy load) Optimize fonts, images & third-party scripts Server-side + caching improvements ? Tools Lighthouse, PageSpeed Insights, Chrome DevTools, PurgeCSS, Webpack/Vite I’ll ensure measurable improvement on homepage performance. Can share similar optimization results if needed ? Thanks saju
₹9,000 INR in 7 days
6.2
6.2

My plan for optimisation mainly resides with javascript, image optimisation. Remove any unnecessary codes, have very good experience with custom websites, glad to help youu out and I'll share reports of findings during optimisation as well. Regards, Krunal
₹6,000 INR in 2 days
5.9
5.9

Hi, Your numbers (LCP 6.2s, FCP 4.1s, TBT 270ms) point to render-blocking JS and bloated CSS — both very fixable. My approach: • Day 1: Lighthouse CLI audit to pinpoint exact bottlenecks • Day 2–3: JS — code splitting, defer/async, tree-shaking, minification • Day 3–4: CSS — critical CSS extraction, PurgeCSS, defer non-critical styles • Day 4–5: Images (WebP + lazy load), font-display swap, caching headers • Day 6: Final verification with before/after PageSpeed report Tools: Lighthouse CLI, Webpack Bundle Analyzer, PurgeCSS, GTmetrix, WebPageTest. Target: LCP under 2.5s and TBT under 150ms — I won't close until we're there. Timeline: 5–6 working days Need: Codebase access + build config (Webpack/Vite) Ready to start immediately. Let's get those scores into the green.
₹5,000 INR in 2 days
5.7
5.7

Hello there, we are a team of capable developers and we can do this project in no time. Please, send me the project complete details to start the work. Thanks Ashish Kumar.
₹7,000 INR in 7 days
5.6
5.6

Hello, I’ve gone through your job description and understand that you’re looking to significantly improve your website’s PageSpeed performance, especially reducing LCP, FCP, and TBT on mobile without breaking functionality. With 5+ years of experience in front-end performance optimisation and web development, I’ve successfully handled similar projects with strong measurable improvements. I have successfully handled similar work before as well. What I can help you with: • Deep JS & CSS optimisation (defer, split, minify, remove render-blocking issues) • Performance tuning using critical CSS, lazy loading, and modern bundling strategies • PageSpeed optimisation focused on improving LCP, FCP, and TBT Warm regards, Monica Bhatia
₹5,000 INR in 3 days
5.1
5.1

I actually knows what to do to boost website real speed performance and Core Web Vitals, I am not someone who just installs speed plugin and calls it done. If you need real-world, hands-on speed performance and Core Web Vitals optimization of particular homepage of your website, I am here. You will get before/after speed results. Share the website homepage link, then after I will check and tell you plan, cost and how much time it will take? Price is placeholder only and depends on work complexity.
₹10,000 INR in 7 days
5.1
5.1

Hi there, I understand your homepage suffers high LCP (6.2s) and FCP (4.1s) on mobile due to heavy JS and bulky CSS; I’ve fixed similar corporate homepages by refactoring bundles and extracting critical CSS to restore sub-2.5s LCP without visual regressions. - Audit: Lighthouse CLI + WebPageTest to identify blocking JS/CSS, third-party impact, and render-path bottlenecks. - Optimization: split bundles (Webpack/Vite), defer/async non‑critical scripts, tree-shake, implement critical-CSS + PurgeCSS, compress & HTTP/2 push where useful. - Deliverables: updated build (Webpack/Vite) + patched homepage assets; before/after Lighthouse reports showing LCP <2.5s and TBT <150ms. - Risk control: staged deploy with A/B testing (feature flag), rollback plan, visual/regression checks across mobile viewport sizes. Skills: ✅ Webpack ✅ JavaScript ✅ critical-CSS extraction / PurgeCSS ✅ bundle splitting / deployment (VPS/CDN) ✅ performance profiling / Lighthouse, WebPageTest Certificates: ✅ Microsoft® Certified: MCSA | MCSE | MCT ✅ cPanel® & WHM Certified CWSA-2 I’m available to start immediately. Do you have a current build pipeline (Webpack, Vite, or other) and can you share access to Lighthouse or site-test results and the staging environment URL? Best regards,
₹12,133 INR in 1 day
4.6
4.6

Hey, I understand that your corporate website is failing mobile PageSpeed metrics due to heavy JavaScript and large CSS, especially impacting LCP and TBT on the homepage. The focus is optimizing scripts and styles without affecting design or functionality. My Approach: I Will audit bundles using Lighthouse and performance profiling, then apply code-splitting, defer/async loading, tree-shaking, and remove unused CSS via PurgeCSS. I’ll also extract critical CSS, compress assets, optimize fonts, and fine-tune Webpack/Vite bundling to reduce blocking time. Changes will be tested iteratively to ensure LCP drops below 2.5s and TBT under 150ms. This approach improves load speed, reduces bounce rate, and boosts SEO performance without redesign. Let's connect to jump in fixes. Thanks!
₹9,800 INR in 3 days
4.8
4.8

I have read your requirement for require expert in website development and increase Google’s PageSpeed for desktop and mobile and also solve pagespeed insight parameter error I have 9 years experience in website development . i will provide best solution if you will give me projects. Thanks, Patel Maulik
₹1,500 INR in 2 days
4.4
4.4

Hi there, Strong alignment with this project comes from experience optimizing Core Web Vitals, especially improving LCP and FCP through JS/CSS refactoring and performance tuning. Clear understanding of the requirement to reduce render-blocking resources, optimize bundles, and improve homepage load performance without impacting design or functionality. Hands-on expertise with Lighthouse, Webpack/Vite optimization, code splitting, lazy loading, and critical CSS extraction ensures measurable improvements in PageSpeed scores. Risk is minimized by testing each optimization step, monitoring performance metrics, and maintaining visual consistency. Available to start immediately estimated timeline 2–4 days to achieve target metrics, happy to discuss approach. Recent work: https://www.freelancer.com/u/chiragardeshna Regards Chirag
₹7,000 INR in 7 days
4.6
4.6

From JavaScript to Web Development and more, my vast skill set is perfectly tailored to your website optimization project. With over 9+ years of experience in the field, I have an expert handle on managing the very pain points that you've brought up - heavy-handed JavaScript and bulky style sheets. Having worked with numerous websites that suffered from similar issues in the past, I have developed foolproof techniques for refactoring, deferring, compressing or otherwise optimizing JS & CSS files, without hampering site functionality or design consistency. I am confident in my ability to bring a comfortable uplift to your homepage's performance. In regards to your particular concerns with the homepage, I understand that it's pivotal to visitor engagement as well as access across devices. And that's why your project aligns perfectly with my core expertise in HTML and JavaScript. I have successfully implemented a range of optimization techniques like code-splitting, async loading, tree-shaking etc., and have found these to be crucial in achieving measure improvements on performance metrics such as LCP and TBT -- exactly what you're looking for. Before beginning the project, I would adopt Lighthouse CLI and Webpack plugins along with other proven tools to evaluate and analyze the current state of your website even further and get a comprehensive understanding of touchpoints for target optimization areas. Coupled with regular progress updates directly from these too
₹15,000 INR in 7 days
4.4
4.4

Hi, I see your homepage is struggling with mobile performance—especially high LCP and blocking time caused by heavy JavaScript and CSS. The goal is to bring your PageSpeed metrics into the green, with faster load times and smoother rendering without breaking functionality. I would start by auditing with Lighthouse and Chrome DevTools to identify render-blocking assets, then refactor JS using defer/async, apply code-splitting and tree-shaking, and reduce unused scripts. For CSS, I’d extract critical CSS, remove unused styles via PurgeCSS, and optimize delivery. I’ll also optimize fonts, images, and caching to support LCP improvement. This is exactly the kind of performance work I handle regularly, and I’ve improved similar sites by significantly reducing load times and blocking scripts. I typically use tools like Lighthouse CLI, Webpack/Vite optimizations, and real-device testing to ensure measurable results. Estimated time: 2–4 days depending on complexity. If you’d like, I can audit your homepage first and share quick wins before starting. https://www.freelancer.com/u/mhmamun360 Best regards, Injaazh
₹1,500 INR in 1 day
3.8
3.8

Hello, I AM AN EXPERT WEBSITE PERFORMANCE OPTIMIZATION SPECIALIST READY TO START NOW I’ve improved PageSpeed scores for multiple sites by tackling heavy JS/CSS bottlenecks and bringing Core Web Vitals into the green without breaking design or functionality. I understand your main issue is high LCP and blocking scripts on mobile—I will audit via Lighthouse/DevTools, then apply code splitting, defer/async loading, remove unused CSS (PurgeCSS), extract critical CSS, and optimize bundling (Webpack/Vite). I’ll also compress assets, lazy-load media, and fine-tune render paths to bring LCP below 2.5s and TBT under 150ms, with before/after reports to prove measurable improvement. Thanks.
₹12,500 INR in 7 days
3.3
3.3

As an experienced full-stack developer with a knack for optimizing web performance, I'm eager to tackle the challenges your corporate website is facing. My in-depth understanding of CSS, Javascript, and HTML, will enable me to effectively refactor and optimize your codebase without compromising on functionality or design integrity. I regularly employ various industry-proven techniques such as code splitting, async loading, tree-shaking, and critical-CSS extraction using tools like Webpack/Vite and PurgeCSS to significantly improve page loading times. I'll also leverage tools like Lighthouse CLI and Google PageSpeed Insights to continuously monitor and measure the improvements we make along the way. With a thorough understanding of the Core Web Vitals metrics, especially First/Largest Contentful Paint, I'm confident I can bring your homepage comfortably into 'green.' Moreover, my focus on scalable architecture and automation-first solutions ensures that not only will we boost your website's performance now, but we'll also lay foundations for long-term success by saving time and scaling fast. Let's get started!
₹7,000 INR in 20 days
2.5
2.5

Hi, I understand you need a senior backend-focused developer to optimize your corporate website's homepage core web vitals, specifically targeting First Contentful Paint and Largest Contentful Paint. I'll approach this task by reviewing your existing JavaScript and CSS files to identify the main performance bottlenecks and implementing code splitting, async loading, and tree shaking to minimize the load on your webpage. My expertise in Laravel, Node.js, and React.js will allow me to refactor and compress your existing codebase without compromising functionality or design consistency. I've worked on similar projects in the past, optimizing complex backend systems and ERP/CRM/SaaS platforms for performance and scalability. My experience with payment gateways, third-party API integrations, and performance optimization will also be valuable in this project. To deliver the desired results, I'll focus on the following key features: - Code splitting and async loading to reduce the initial payload and improve load times - Tree shaking and compression to minimize the size of your JavaScript and CSS files - Lazy loading of non-essential resources to further improve performance - Review and optimization of your existing HTML structure to ensure it's optimized for search engines and user experience I'll also consider edge cases, such as browser compatibility and caching strategies, to ensure a seamless user experience across all devices. I'm confident in my ability to deliver a high-performance homepage that meets your requirements. I'd like to clarify whether you have any specific design or functionality requirements that I should prioritize during the optimization process. I can deliver this in 5 days.
₹5,900 INR in 5 days
2.1
2.1

Hi, I understand your requirement—you need a measurable performance overhaul, especially reducing LCP and TBT on mobile without breaking your current design or functionality. I’ve optimized multiple production sites where heavy JS/CSS caused similar PageSpeed issues, bringing them into the green zone with real Lighthouse gains. My approach (focused on impact): • Audit with Lighthouse + Chrome DevTools to identify LCP blockers • Extract and inline critical CSS, defer non-critical styles • Apply PurgeCSS / tree-shaking to remove unused CSS • Split and lazy-load JS (code splitting, dynamic imports) • Defer/async non-essential scripts and reduce main-thread blocking • Optimize fonts (preload + swap) and eliminate render-blocking assets • Compress/minify assets and improve caching strategy Tools I use: • Lighthouse CLI / PageSpeed Insights • Webpack / Vite optimization configs • PurgeCSS, Terser, ESBuild • Chrome Performance profiler Expected results: • LCP: from ~6.2s → under 2.5s • TBT: from ~270ms → under 150ms • Faster first render and smoother mobile experience Timeline: 3–5 days (including testing & validation) If you want, I can start with a quick audit of your homepage and share exact bottlenecks + expected gains before implementation.
₹10,000 INR in 5 days
2.0
2.0

With your website in mind, my typical approach is to prioritize performance without compromising functionality or design. Specifically targeting reducing script and CSS load times for First Contentful Paint and Largest Contentful Paint, I will employ a range of tools including Webpack, PurgeCSS and LighthouseCLI to measure, compress and optimize your JavaScript and CSS files. Having been involved in numerous optimization cycles, I’m confident this can be achieved with minimal disruption. Throughout my career as a Full Stack Developer specializing in both the MEAN and MERN stacks, I have always focused on creating scalable, high-performance applications. Your corporate site's homepage will be no exception. Using modern techniques like code splitting, async loading and tree-shaking, combined with my expertise in Webpack/Vite bundling, that jQuery carousel won’t slow down your page anymore. Understanding the urgency here, I commit to delivering tangible improvements within X weeks that score noticeably better on PageSpeed Insights- a LCP below 2.5 s and Total Blocking Time below 150 ms. So if optimizing performance while keeping functionality intact is your priority too,don't look any further-I'm your candidate! Together we can build an efficient solution that elevates user experience on your site!
₹5,000 INR in 5 days
1.7
1.7

deoli, India
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