Upgraded from 3080 to 5080, terrible performance drop

Help!
1

As the subject says, i upgraded to a 5080 from a 3080 and my performance has TANKED in both desktop mode and vr mode, stuttering a lot especially with menu open. If i go near anyone or open a mirror by fps drops from 90 down to 72 and below, down to 50 with the menu open. If i spam the menu button open and closed the fps tanks even more. I have tried clearing caches and using max shield mode, even veriying files, nothing worked. Vrchat is the only game with this issue.

Updated drivers had no effect. Uninstalling recent apps had no effect. Graphic settings have no effect and i shouldnt have WORSE performance than my prior, multiple times weaker GPU. Not using any betas. I use virtual desktop to connect to vr but this issue happens in DESKTOP mode on a 1440p monitor.

2

im almost certain there is hardware problem going on here, i went from a 3080 to a 5090, and 4x my performance in desktop, and 2-3x in vr,

”vrchat is a cpu bound bottleneck” so ur cpu does matter here alot, ur cpu could be bottlenecking ur gpu alot

3

I have a 12th gen i9 intel core, and its barely under load. I tried playing more recently and it was a lot less stuttery and lagging, so im sure it’s something caused by vrchat’s updates themself. No other game struggles at all. Even Modded Skyrim vr gets a solid 90fps at Ultra resolution in Virtual Desktop.

4

then id say its vrchat having problems directly with the cpu, its a bit odd a cpu is under very little load in a cpu based game,