Got the same thing, FPS drops down to 40ish in the surface on my GTX970 paired with a new I7. Very playable and pretty in Ultra, but as most people are getting 60+ with same GPU/CPU i figure something might be wrong. Once home from work i will check the supersampling setting, and will try to run the game without geforce experience to see what happens. Will post the best settings for my rig here once i found them.