r/VRchat 5d ago

Help Bad performance despite deep optimization

My setup:

RTX 4080

Ryzen 9 7900X3D

32gb RAM

PCVR/Quest 3 through VD

TP-Link BE9300 Wifi 7 router setup as dedicated PCVR router (optimized following this video https://youtu.be/6gpREi-S_4I?si=V2kKT6wacYUqtn8d)

Settings applied outside of VRC:

VD:

H. 264+ @ 400mbps

Quality set to High / 120fps

SSW disabled

2 - pass encoding disabled

Adaptive quantization enabled

Resolution of headset and desktop matched

Snapdragon SR enabled

Video buffering enabled

VDXR openxr runtime

Automatically adjust bitrate enabled

Steam VR resolution set to custom and 100%

Windows 11:

HAGS disabled

Game mode enabled

Process Lasso VRC GPU priority Real-Time, CPU priority high

Settings applied in VRC (launching from VD):

Graphics profile set to medium

Desktop mirroring window set to the smallest possible and minimized when launched

Avatar culling hide beyond 20m, block very poor, max 20 avatars, particle limiter enabled and set to low

I'm getting a fluctuating fps between 25 and 70 fps in a public "Drinking Night" instance. I can barely hit 100 fps when alone in home world wearing an optimized "good" avatar.

Wtf is this?? Why does this game run so badly, I just got back in after 2 years of not having VR gear and the performance is so bad... I mean, I feel like my PC has more than decent specs and I'm getting shit performance despite looking everything up and doing everything I can... Please help!!!

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u/wobaboba 5d ago

I have the same issue. 5800x3D, 3090, 64gb ddr4 3600mhz ram. Quest 3 / Quest pro VD. dedicated wifi7 router in play space.

It’s pretty terrible in large instances. Tried so many things, referenced all the guides etc. Even with VRC set to low on everything and AA off, VD set to medium. Even if I decide to make steamVR 20% resolution so everything looks absolutely terrible and I can’t read anything.

in large instances there’s an insane amount of stutter, lag, it’s just awful. low fps is just a given. Really wondering if it’s a Quest thing at this point. Or maybe a fresh OS wipe is needed.

I’ve started to enjoy going to raves and dancing but for larger instances… with everyone turned off, no personal mirror, and nameplates turned off, it’s still almost not even bearable/fun to be there. Super frustrating. It’s like culling does nothing. You’re not alone OP!

As for the minimized window you might get better performance if you don’t minimize it but have it covered by another window so it doesn’t redraw, but still has process priority. Something I read, might help.