I will say more. I have a ASUS ROG G750JH, very powerful gaming laptop, with support 3d Vision (NVidia GeForce GTX 780M 4GB).
Any game (any!) with full graphics settings - fly!!! (at 120 frames per second for 3D vision included!)
However Oculus even simple scenes very slow!
For me, this is very strange!
Also really want to understand it.