I am using Netdrone cluster on my project and found out that there are .NET Socket Poll bugs on unity’s implementation of it, here is the excerpt from the Netdrone cluster author :
Already reported this case since months ago but still there is no follow up, the performance degradation is really ‘crazy’ as the FPS goes down into until 3 FPS when IL2CPP implementation bugs of .NET Socket is used. When using Mono as scripting back-end, the performance is normal.
@Tautvydas-Zilys
Yes, the 1056170 case is one of the issue but i forgot to mention that this one is ‘new’ or another one but still related to the asset that is used in 1056170, i was tested it on 2018.2.11 and 2018.3b5, this socket poll problem is still happening, and the socket.poll performance still really bad.