Thx Chrudimer
How to change the bandwidth - increase/change that limit in the config files.
I think this is important in physics simulation multiplayer:
collision - Less is better - Not so many points to hit.
Player - Polygon - physics simulation multiplayer to server - less use of packet.
player LOD Maybe it is not important. I have tried alot and it seems to be taking no effect.
Environment LOD - Maybe it is not important. I have tried alot and it seems to be taking no effect.
Cull Distance Volume - is good for CPU/GPU only… 
If anyone has more stuff - may you say so