Have you tried locking at 45fps? This seems to be the best option for 90hz displays. I get way smoother flight locking to 45 than to 50fps, for example. Something about exactly half the refresh rate introduces magical smoothness, at least on the G2.
I still get stuttery phases every few minutes unfortunately, but when it’s smooth it’s REALLY smooth. Am hoping an x3D chip may improve this.
A weird thing I noticed: when I’m in a stutter phase, changing the cloud detail level to any other level instantly makes it smooth again. Makes no sense but works every time. Doesn’t matter in which direction, High to Ultra, Ultra to Medium etc. It’s almost like something gets backed up and changing the clouds resets that state.