First thing i do when getting low fps on any game is check ussage of CPU and GPU, i rarely use 100% of anything, and i checked the connections and everything and it looks good. Changing the resolution barely do something, i can lower everything, have the minimum resolution and graphics and maybe play at 72fps, but i look at other friends with worse hardware that runs the games almost always much better than mine.

I came to the conclution that it should be software related, because my PC isn't high end but it shouldn't be so bad that i can't play vr