So I also made lot of tests with my RTX 3070 and new NV drivers and definitively better with HAGS ON, less stutters in VR, and better than good old 457.30. As said I also updated MB bios and vbios of my Gigabyte Gaming OC to enable Resizable Bar (even if MSFS don’t handle it) so it could be a mix of all those factors which induce my current good results.
I even tried to force lock my fps to 30Hz (CV1 at 90Hz native) ASW ON (retropro) but it’s a big no, I stay with my 45fps locked (and less headroom) until devs implement ASW 2.0, too many water wobble effects.
Edit : Please vote if you have one of the Oculus headset, it will be far better: