Hi, Over the last day or so, I've been trying to figure out why the game is seemingly lagging when looking around in VR. My framerate is fine; steamvr is set to run at 90hz, and the game is holding a solid 90fps on medium to high settings. CPU usage is around 50 to 60%. As soon as the view changes from 2d in the cut scenes, to vr, I look around and the lag makes me feel quite ill. It's as if you look left or look right, and the screen movement is slightly behind or at times, the screen moves with you. This problem exists regardless of graphics settings, from ultra low to high. 

The problem is also noticeable when you pause the game. If you look at the menu and turn your head left and right, the menu partially moves with you to a degree. At first I thought the fov settings were wrong, but there's no way of changing it in VR that I could find. The option for fov does exist within the 2d mode, but changing it in that mode has no baring on the vr mode. 

While I'm at it, the view reset doesn't seem to work properly neither, it always sets me in a position that is too far away from the steering wheel... leading me to think that there is indeed problems with the fov. Whether this is the reason for the laggy feeling I get when looking around, I don't know. My pc specs are below. Thanks for your time. **Update** I also have an Oculus Rift at hand to test with along side my Valve Index. I've had some interesting results. The stuttering on the Oculus is indeed caused by usb peripherals. Unplugging them while in game suddenly makes everything smooth and eliminates the stutter, however, doing this does not work with the Valve Index, the lag still persists.  The issues could very well have something to do with usb devices, which is certainly the case with the Oculus headset. I have repeated the process every time successfully, both making the stuttering start, and stop. It may be a device limit, but I'm not 100% sure.   
Platform: Steam VR/Open VR
HMD: Valve Index and Oculus Rift CV1
PC: RTX 2080ti, i7 6700, 32gb RAM
Deluxe User
Connected: Accuforce Steering Wheel, Heusinkveld Pedals, Handbrake and Shifter