Bulletin Board with Captacha on Wordpress project

We've developed Wordpress site with 13 bulletin boards. It has been completed using BBPress with Captcha feature. But, it gives an awkward Captcha design and slow speed. This project is only for the experienced coder with BBPress or others with Captcha feature. The coder should show the previous experience and its solution. The coder's duty is implementing the code to our project with bulletin board and its Captcha. And solve the speed issues in the website registration and page changes. 1. It should be done in 3 days. 2. It should support both English and Korean language. 3. It must have good speed and good-looking Captcha design. 4. Solve the speed issues in the website registration and page changes. We will give the information of our project to the selected coder.