hello WRX S1,
thank you for your answer.
I have this issue when i am using the game in training mode, It is lagging on training mode. there is no need for using network on training mode. I am sure of that.
To prouve it, try to play on training mode, load completely
the game and then close your network connexion, your will see it doesn't affect the game at all, you can still play. So there is no remote procedure call (using of the network) on training mode, only when you play in real against an opponent. In other term, its not an ISP routing problem (this would be a network problem).
This means that the performance problems are located on your computer, cpu or gpu. 3d programs are using a lot off ressources, and optimization is not an easy thing to do, but i hope they will try.