Node.js Socket.io performence issue

We,have a node version 8 [login to view URL] version 2 and express running as a server connected to a host which sends messages to which we subscribe [login to view URL] works fine but we see bottlenect with respect to processing and output i.e we are missing the updates sent by the host Each incoming and outcoming command should have the following structure:  Size of the entire command is placed in the first 4(four) bytes using big-endian ordering  The rest ones contain the command body This is already implemented .Pleasre read through the latest node doccumentation if you haven't already as there is some improvements with regards to the buffering which we think we have done but not sure it is fully implemented also the possible bottle neck could be for msg string though not [login to view URL] need to be 100% sure of what you think. Thanks and Regards