>>287125785
I've had similar problems, what fixed it for me was buying a proper USB 3 PciE card (Inateck 4 port with power connecter and fresco logic chip) and bloating my page file to 50gb because of how shit VRchat is at loading and unloading avatars. Also would recommend starting vrchat in desktop mode while holding shift to access the secret settings menu and set it to "vr low". Oh and install the default windows 10 drivers for your USB 3 chipset.
t. got a wmr headset for $120 and have been dealing with random bullshit until I did all this.