UE4.9.1 does not recognise Rift with 0.6.0.1, and has game breaking performance with 0.7.0.0

[virtualHC]

@Sam Deiter;395636

Hey everybody,

I did some testing and figured out that it is most likely the AO Post Process that is causing the lag you are experiencing. Turn off AO by setting the intensity to 0 and see if your lag stops. I have tried this with a Vive and DK2 and both times disabling this made my frame rate go back up to normal.

Would that also explain why my frame rate went up back to normal when I brought down the Engine Scalability setting for Post Processing?