>>318680228
It's consistent but framerate looks around 25 or so and that's with shadows completely disabled. In any other VR game, this would be sickening, but it doesn't really bother me too much since you're sitting still and moving at such a high location. 
I can say that flying feels far easier in VR especially if you're navigating by landmarks.
I'll fuck with my settings and see if I can't get it looking/working better.