VR Stutters - No way to eliminate

I think I've tried it all and can't seem to resolve the minor stutters I get in VR with my current setup. Regardless of track(sometimes happens more on certain tracks than others) this happens every multiple times on each lap. Solid 72fps and then I will notice a slight stutter and will see the fps drop to 70 or 69.

System:

Asrock B760 Pro RS WiFi
Intel Core i7-14700K
Zotac GeForce RTX 5080
G.SKILL TZ/RJ/FX DDR5 6400 C32 2x16GB
NVME install
SimHub with two bass shakers
Moza Wheel

Virtual Desktop Streamer Settings:
Ultra
80FPS
200 Bitrate
H.264 Codec

I can occasionally get a stutter free session for 10-15 minutes after an initial boot up and load straight into game. When it does run without a stutter, it's amazing. Just can't seem to keep it that way. Does anyone know why?


**********RESOLVED**********
I have two routers a TP-Link C9 and an ArcherAXE5400. Quest 3 & PC connect to the Archer, everything else runs through the C9.

I had to change all channels on the C9 2.4 and 5G to channels less used in my vicinity. I also disabled the 2.4 &5G on the Archer.

There were new Nvida drivers today and I also got a Meta update but I don't think they resolved the issue.

I'll keep testing but so far, I can rock 72fps without ever dropping or seeing a stutter.

I hope this will help others out there. Check the wifi channels!!!!! I thought I was good cause of the wifi 6 and no network issues in overlay display when testing.

 

Hey Marius! Thanks for responding.

I'm all in to help and provide feedback/success/findings.

1.Pit Crew is set to Player Only already
2. UPS is turned on ( I use SimHub for baseshakers and disabling will turn it off)
3.LoD is set to NO

I will confirm if I set #2 to off on the UDP shared data then I have almost no drop in FPS.

I just ran a quick test as I have thought this stuttering comes from my SimHub UDP setup.

Ran 3 different tracks to test(Guapore, Taruma, Watkins Glen GP)
I can confirm with UDP off then I would get 1 drop every other lap of 1 fps which was hardly noticeable (72-71fps) and running smooth as can be.

This means no SimHub and bass shakers which sucks. Anyway we can fix this? I'll try anything as I need those rumble strips in my life!

Thanks

 

Thanks for the help Marius. The only way I can eliminate the frequent stutter is by going this route. When I do set Use Shared Memory to "No" it kills my SimHub connection but eliminates the rumble effects.

I don't see or know a way around it.

 

Been working on this and feel like I narrowed it down to what I was worried it would be.

It's got to be VDS. I can get some instances where I'll get after a fresh reboot or startup(not always) a good 5-10 minutes where framerate stays locked in at 72fps. If I end that session and start AMS 2 up again, or leave track and go back is usually when it starts up. It does start after a certain amount of time as well and happens on every track. What is certain, when this starts it is a 20 second stutter. I can sit in one spot and every 20 seconds it will stutter and drop 1-3 frames.

I installed and ran PC2 and it does the exact same 20 second stutter.

I've tried closing out of simhub and end all processes - still get 20 second stutter

I've set AMS 2, Simhub, VDS all to high priority. - still get 20 second stutter.

I have run low in medium and still get 20 second stutter.

I thought perhaps it was SimHub and AMS 2 but I think this is a Virtual Desktop issue. I get the best graphics and performance (minus this stutter) from VDS, not sure where one goes from here but I'm committed on trying to resolve this and hope it helps others.

Thanks again for your help Marius. Posting this in the other thread as well.