Yes, I see this too with limit set to 36 I get about 32. However, it also looks like setting a limit in 2D sets the same limit in VR with both either on or off. In addition to this even if the limit is turned off in both, I still seem to be getting a capped rate. I am using a Pimax Crystal Super set to 72 Hz so am targeting 36Hz which I do get but if I press esc to change something in the settings and then return to VR, I get about 50 to 60 for 5 to 10 secs and then it steadily reduces down to 36 again. It seems there is something forcing the limit even if not set. Nothing is set in Nvidia driver. Has anyone also seen this effect?