System: Ryzen 5 3700X, 32Gig RAM, GTX1070, 2TB Nvme SSD.
Software: Win 10 Pro, clean new build, system fully updated. Latest Nvidia drivers. FS2020 (Steam version). Community folder empty. No Dev Mode changes.
Settings: 1440p, all graphics setting medium or low. Vsync off, Bing data off, photogrammetry off, live weather off, all traffic off, multiplayer off, VFR map disabled. (everything I can think of off).
In the steam gauge Cessna 172 I take off from Inverness, clear skies, Dev Mode off, stock basic airport, no towns around, simple scenery and climb to 1000ft.
I get 35-40 fps and in level flight and it stutters every couple of seconds. If I enter a 30 degree turn it stutters several times a second. The stutter appears to be caused by a spike in the CoherentGTDraw graph, whatever that is.
Any aircraft with a glass cockpit the effect is twice as bad. Dropping the resolution down to 1080p I get over 55-60fps and it still stutters continually.
The only aircraft I have flown which does not stutter continually is the Savage Cub.
I have all Nvidia settings adjusted for performance, I’ve followed all the threads and experimented with HAG on and off all to no effect.
I think it’s pretty clear from the fact that I can get over 55fps and have it still stutter that the problem isn’t that my GPU or CPU aren’t able to render the game quickly enough. If it can’t render smoothly at 55fps then it’s self-evident that there is a software problem here somewhere.
So I can’t fly anything that has a glass cockpit, retractable undercarriage and a decent cruise speed, and I certainly can’t install any third party airfields, I bought Headcorn and get a low 20fps slideshow there.
The game is unplayable for me. I just want to know whether this even being looked into, because looking at the snapshot of issues on the Asobo dev blog they seem to think this is fixed!!!
Incidentally, prior to WU4 I was playing on all settings High with textures on Ultra with no problem.
At this stage I’m literally reinstalling FSX as I don’t see that there’s anything else I can do.