Here’s 1 thread on the issue.
Im not having CTDs, Im having stutters. Two different things
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So I went back to 472.12 with a clean driver install, as this one was the last major version, but same problem. No difference at all
I don’t think it’s a driver issue as I’ve been on an older driver 466.77 and had zero stutters until the 1st of the year. I’m convinced it’s something to do with data streaming (weather,traffic,PG).
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Yes I just noticed I was on DX12. I switched to DX11 which improved the situation, but did not remove the stutters like they formerly have been. Switching back to 497.29.
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There seems to be a co-relation to stutters and CTD with live weather.
Most get stutters followed by CTD. Some get lucky and just have stutters
Try using a preset weather and see if that makes a difference.
What I noticed from the fps counter is the VRAM usage spikes when turning the camera. If it goes over the physical limit of my card, it stutters. VRAM usage quickly goes back to normal after the camera is facing one direction again, yet during the transition it needs too much in VRAM at once.
Lower settings of course lower the ceiling and have more chance not exceeding the physical limit of the card. Yet some optimization in exchanging the data in VRAM would help as well.
Sounds like the usual mainthread limited problems. I suggest raising graphic settings (but not LOD) to ultra… and without setting any caps turn Vsync on in NVCP (unless you have Gsync). Raise renderscale or lower LOD to cure stutters or lower both for more fps. I aim for 25-30 fps at a large default airport and this gives me 40-50 in the air.
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I had this problem when coming into land, which made it impossible to do anything - I had previously changed the ‘Terrain Level of Detail’ to 200 which I’m sure was the problem. It makes sense as I was of course near to the terrain. I set it back to 100 and have had not had that problem since.
Solution is to turn off live weather ( in the menu not toolbar!) then turn it back on and the stutters should have gone away.
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No, turning off live weather does not make a difference for me. Also, this issue got fixed some days ago by Asobo
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I would never ever aim for fps below 40. I just find it waaaay too unsmooth and 2010 style. I do have a Gsync monitor which isnt active below 40fps. I would never want to miss the smoothness of gsync. So 40fps is the bare minimum I always aim for. And in MSFS its very much possible even with my 2070S and High settings on 1440p. Just the stutters and dips below are the problem. But I will wait for the patch this eveninig, maybe it helps.
BTW, I tried raising some GPU graphic settings to be limited by GPU rather than mainthread, but also didnt make a difference. Still stutters when turning the camera
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I took a closer look at my VRAM usage, but it doesnt spike above 7GB for me. For a test I lowered texture resolution to Med and thus the VRAM usage, but it also didnt make a difference
Unfortunately, it doesn’t seem to have been fixed for everyone.
There are still posts coming in here on it.
I hope you find the issue!!
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Here below I try to describe more in details…
All of sudden, everything was good in the morning, right after I install newest Nvidia driver or the latest windows update, I can’t remember which one first…
and then I cannot load into any airport normally, it took me 10 times longer duration to get into the cockpit, and the frame rate is chopping like 1 fps or 2 in external view, cannot operate anymore, can’t play anymore, normally it runs at least above 50 fps, 2K resolution ultra setting (RTX 3080) in VHHH paid airport
To be exact, when it is in the cockpit, when I move the camera freely, it appears okay with good fps, but when it is in external view, when the camera moves, it drops to 1 or 2 fps, the frame rate is DEAD when the camera is panning, but it is strange when it moves up and down, it seems okay
So far I have done below but still no luck…
(1) Updated latest windows (Win 10)
(2) Updated and complete re-install latest Nvidia Driver again and again (511.79 which was released yesterday)
(3) Downgrade to previous Nvidia Driver (5.11.xx), tried 2020 version, still no luck
(4) Deleted manual cache and rolling cache
(5) Verified MS2020 game files in STEAM apps, it says complete with no issue
(6) Run admin cmd sfc/scannow, no issue
(7) Tried above everything with no luck and frustrated, I COMPLETELLY uninstall the whole FS2020, delete the whole folder in C: drive, reinstall it…but the problem did’t go away!!!
Don’t know what to do now…
P.S
I have no any mods in the community folder
I am not using VR
I am not using additional peripherals, I use only mouse, keyboard and XBOX gamepad
I use Geforce Experience to set best setting FS2020
I am sure the graphics card does not have any problem, it runs smoothly on other games and application
not best you can do 
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I tried uninstall the GeForce experience as well, no luck
no, un-installing is necessary… Gerforce Exp. is in generally not a bad tool , but Optimize ( or also auto-optimze ) is not best choice… Choose then Reset Optimization and disabled Auto-Optimzation and let the game decide…
Latest win10 update I installed was yesterday the kb5010472 (.net) & kb5010415 (cum.)… You have different ones ? It tried spanning in middle of VHHH and see no issues so far…
What is your PRE-Cache Setting ?
actually every airport would have the same problem, including discovery, training, challenge etc…
whenever the camera pans, it stuttered, like 0 fps
Same windows updates as you mentioned…
Don’t know what is pre-cache setting…I suppose you are referring to the “Data” page in-game, right?
I always let it default setting, no change of anything and suddenly has this serious fps issue.
380 hours flying now, very frustrated…
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there is a in-game setting called like “off-screen pre-cache” ( rel. new setting ).
The OP mentioned it too:
But I remember that we get report about in case ‘Higher Settings for this’ 
( note: I have it at Ultra Setting )
One example post:
Not sure whether its relevant in your case, but may be you can have a look into.