I stumbled upon a video today showing how to reduce the memory usage and processing overhead for VR gaming, some of which I already knew. But one of the apps recommended is free and it makes it easy to replace the WMR home with an empty room and so reduce memory usage. Or you can select other different environments if you want, including a pizza, which does look amusing.
There’s also a neat performance overlay app showing temps memory usage, frame times etc for 3$ on Steam, called fpsVR. I have no association with the video creator or the app developers.
So, for what its worth, video: