I found that setting the desktop monitor option to none helped fix any framerate judder issues I had.

Brilliant work on getting this to work in VR. Just spent most of today playing on it with my Vive. Once I'd worked out how to get it setup and working (I was trying to use the keyboard instead of the wheel controller) it's been ace fun. I'd been trying Project Cars but that's got loads of pop-up and doesn't feel right yet, but this feels excellent. Forgotten how much fun this game is and the VR adds that dimension I was missing all those years back. Upgraded to S3 as well to get Rockingham. Keep up the good work.

(One thing I would like is to be able to move some of the HUD items around, some end up going through mirrors or A-pillars and break the immersion slightly).