Rigle

Im running this game on PC with a i7 9700k, 1080ti and 32 gigs of ram and an oculus VR. Even with the reccommended settings that supposedly run good on a 1060 I am still getting a frame drop every 3 to 5 seconds. I have about 40 to 50% of headroom according to oculus debug performance monitor and it will still drop from 90 fps to about 50 fps every few seconds. There is something wrong and it's not a graphics setting.

So my question is I got a recommended FOV of 60 on the project immersion website. Should I set my FOV to 60 or 30 because it's x2?