I like the mount tilt but I noticed motion sickness as well... I think it's more from the "radial blur" which I had deactivated and it's now activated again with the update... and also the overal detail in graphics, its makes me dizzy to have such a "grainy" background

I temporarily fixed a bit deactivating:
-OFF: radial blur
-OFF: camera pivot
-ON: low res background details

I strongly believe is not the tilt but the graphical change itself that makes flying really weird now