Wanted to see how it handled with realtoon and all those textures. Here's just the material replacement with the shader included.https://vrcmods.com/item/1709
I just run in lowvr mode or lowdesktop mode where its less intense on the system. If you have multicore, you can also limit how many cores VRChat is using to keep it from going too crazy. Unity is not the best engine when it comes to being memory efficient.
Its a little tricky to get the hang of but its pretty cool. Keep in mind that some areas use baked lights so you may want to have a little self-illumination to get things to show in places like the Hub.