[Alan Anderson]

I'm having a hard time understanding what you want to do. What you're calling the "server" is apparently sending data continuously, and what you're calling the "client" is apparently reading the accumulated data once every 20 milliseconds. Is that the intent?

Normally, I'd expect the client to send a packet of data either on a fixed schedule or whenever the data is available, and the server would wait for data to appear before reading it and processing it immediately.