RTX 5080 + Core Ultra 7 265 low FPS and low GPU usage (stuck around 60-70 FPS even in empty home world)

Help!
1

Hi,I’m having severe performance issues with VRChat on a high-end PC.My specs:

  • CPU: Intel Core Ultra 7 265
  • GPU: NVIDIA GeForce RTX 5080
  • Motherboard: ASRock B860 TW
  • RAM: 32GB
  • OS: Windows 11

Problem:

  • In the title screen / empty home world, FPS is capped around 60-70 FPS.
  • GPU usage stays very low (~16-20%), CPU usage also low (~16-20%).
  • Title screen maximum FPS is stuck at 144 (my monitor refresh rate).
  • Other games run fine with high FPS.

What I already tried:

  • Clean driver reinstall with DDU (latest NVIDIA driver)
  • Deleted all VRChat cache and settings folders
  • Tried --fps=0, -force-d3d11, -force-d3d12, windowed mode, etc.
  • VSync off in NVIDIA Control Panel and in-game
  • BIOS is latest available (6.02.G10)
  • Graphics preset changed to Low/Medium/High (no difference)
  • G-Sync/FreeSync off, power plan high performance

The game should easily run 150+ FPS in an empty home world with this hardware, but it’s not. Any help or known issues with RTX 50 series + Arrow Lake would be appreciated.
I can provide logs if needed.Thank you.

2

Can you replicate this issue in the VRChat Home world by vrchat, using the default Robot avatar by vrchat?