I have an odd problem that showed up in the last month or so.  I think it has to do with my Gysnc monitor and RTX 4080 with frame gen, but I can't be certain.

It seems to happen if I have background apps open that I alt +tab to - like photoshop when im doing paints or screenshots.  The sim runs great, but sometimes I see a huge pause... like 10 sec, followed by this rubber-banding effect in MSFS.... anytime I move.  Any object that move sort of flickers.  And if I pan the view, interior or exterior, it does this.  I finally was able to capture a short video with my mobile...  usually it won't even show on the video which makes me think its fps related.

The only fix is a reboot of the sim.

Here's a short video...this is me trying to pan around the cockpit

https://www.dropbox.com/scl/fi/8bcz8ng962yqlw29etrzb/20231128_161724.mp4?rlkey=cy00q793dj5f98trbbq0ntodq&dl=0

Did you change GPU drivers recently?  Have you ruled out that it could be a GPU driver issue?

 I found that the newer Nvidia drivers (any of them from the past 2-3 months) to be quite stuttery in MSFS compared to older ones. I actually went back to the 535.98's today which I know are one of my favorite builds for my 3080ti and it was much better, but every system is different.

I think it's also related to higher MSFS settings.  I've pulled some stuff back like TLOD which I was running at 400, to 200.

But it could have been the SU14 beta... not sure.  I haven't seen it in a week or so.