I recommend reading the linked post by mbucchia.
Enabling the option may help the headset algorithm, but this depends on which headset you use and the benefits may be anywhere from none to small.
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Turning off fauna seems to have helped my huge fps losses, could be coincidence though so could someone else try it?
I think you linked the wrong reply. The bit about motion vectors isn’t that relevant. It’s reply #8 in that thread that has the info.
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It seems to have helped me when flying low in rural areas in GA aircraft. It’s unrelated to the extremely low fps bug that causes CPU render threads times to go crazy for no reason.
It doesn’t help me, unfortunately.
hahahaha, no one, ever.
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I think this is the one.
Having to switch to 2d mode, to look around when doing the rotorcraft training, and then back to VR again, does not appear to suggest that VR has been fully integrated into MSFS 2024, “as a platform”. 
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Its odd, I can go from super smooth performance… flying in the seattle area in the R66, to a slideshow. And it happens on demand when I really fly aggressive. Yanking and banking, it goes to slideshow…
Strange indeed, looks like a streaming or cache problem more than a cpu/gpu performance issue. On my system, I almost never got stutters, but always ultra low fps, during last session to test different settings, at full resolution in the headset, I was always around 18 to 20fps (7700x/7900xtx/2gb fiber/og Crystal), about - 40 % fps compare to FS2020.
VRAM exhaustion? Try lowering texture resolution and LOD. Especially if you are not on 4090 which has plenty of VRAM, but even this one can suffer VRAM exhaustion.
i switched from 2d 59 fps to vr 29 fps and the GPU task manager looks like this
- 2D - 37% utilization with 8.5 gb VRAM
- VR - 15% utilization with 11 gb VRAM
4070 12 GB
what do you think?
I think that makes zero sense unless you are running VRcin much lower res than 2D,which seems unlikely lol.
no . its the truth . i thing the reason of that is with cpu - gpu comunication which in the VR case use more vram .
I’m not saying you’re lying, it’s just weird 
My 4090 was always 80%+ utilization in VR. Didn’t check 2D.
15% seems extremely low for VR, especially since the sim is so GPU-heavy.
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It’s pretty good for me. There is definitely a bug if you swap in and out of VR to take screenshots a lot. Frames start to crawl after a few times.
Tonight it was somehow much better. EHAM (Schiphol) was beautiful, smooth, lights very realistic, must have been a tweak, because I fly it daily and suddenly beautiful. Still troubles with all the Airbus planes and flight plan not loading, Boeing doing well with flightplan, Daher somehow heavy on the system. Mostly steady 72 frames with ASW, NY and London drop to 62.
Settings medium/high DLSS Quality
System: i5 13400F / 4070 Super / 32GB / Quest 3 / Virtual Desktop (72HZ, Godlike, ASW)
1000+ hours on MSFS2020, 70 hours on MSFS2024
I find that I have a good VR experience when everything seems to be running right on 2024, but I often experience problems switching to VR and end up loading 2020 where it does it without hiccup. I can tell when it’s going to be bad because I see the occasional stutter on the loading screens. I think 5/10 flights are enjoyable the rest are unflyable.
I must say though after some tweaks I made for 2024, 2020 now works like a charm in VR. Fly Tampa EHAM with FSLTL traffic in the PMDG 737 works flawlessly. Taxiying to the overcrowded gates is so smooth with no stutters.
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My VR in MFSFS2024 have been negative. I have a new Predator, 64gb RAM, RTX4070 and the piezo speaker screams like it is a POST memory failure. I have been working on settings and what not, but cannot get the darn buzzer to stay off. It comes on when it seems like there is a lot of processing going on, mostly in VR. Only happens in MSFS2024. Highly annoyed and disappointed.
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Maybe check the BIOS for a temperature warning, as if that has been set and has, hopefully, been set too low, then the buzzer might be giving “false alarms” for overheating.
If the temperature looks like it has been set at a reasonable level, then you’ll need to find out why the CPU is overheating. If you have just bought the PC as prebuilt, my first step would be to get the vendor to sort it out. It could be dodgy thermal paste or a cooler that is not up to the job for example.
It may not be a temperature warning, but I can’t think of any other reason the motherboard would be screaming at you, during use.
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