So that's it! That's why even though I set the high image quality in Unity, the image quality was low. I would be happy if it could support at least 2048.
Viewing post in Dance Dance Maker! - VR game for Oculus Quest comments
Hi, checkout DDM-OC-sidequest_0.5.apk, a temply hot fix for your problem, added a checkbox called "Optimize texture size" when loading VRM model, uncheck it to allow use original texture size without scaling.
You can monitor memory usage using the profiler button, usually disable texture size optimize will cause a mass increase in memory usage.