Darkstar

Hi all, when i trying to play game on steamVR, like "Project car 2" or "Killing Floor" i have realy bad performance. Fps is around 30-40, and GPU at 90% (information from fpsVR) even when i set all to "low". I don't understand because i have a good configuration with latest drivers: rtx 2070 Intel i7-8700K 16Go RAM When playing game on Origin like "angry birds" it seems ok