Hi,
To play adult movie VR 1920p 60fps, 2160p 60fps or 2700p 60fps use the 60hz mode in parameter.
With this mode, the movements are more fluid and natural.I tested well with many files and certifies it.
I think this results from the fact that VR movie 60fps for 72hz created a micro lag and we can see hashed movement rather than smooth.
Best regards.