I've been experiencing model lag issues with VTube Studio while trying to stream/play more graphically intensive games. This issue only occurs when streaming/playing games that generally demand higher system requirements.
I use a Logitech StreamCam and NVIDIA Broadcast Tracker.
I run VTube Studio as administrator and set GPU priority in the software. Generally my CPU usage is very high when everything is up and running. (OBS, VTS, and the game) I'm under the impression that it's a hardware limitation but wanted to troubleshoot the problem here in case there was something I'd missed before I consider upgrading.
My specs are 32 gb of RAM, an AMD Ryzen 5 3600, and a NVIDIA GeForce RTX 2060 SUPER.