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

[Sam_Deiter]

@hcenteno;395659

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

Without looking at what it changed I can not say for sure but this seems like it would be in the realm of possibility.