Next use VRCQuestTools to convert the avatar into a quest avatar, and when removing physbones you can just remove everything besides the ass, tits, and tail.

After that you can press on the avatar and again, and press where it says "avatar" in the animator component on the right. It'll take your Project/Assets tab to the avatar (where you see the fbx and stuff). Press on the avatar in that tab, and then on the right (or wherever your inspector is) where it says "model" change mesh compression to medium (it isn't really noticeable unike high).

You can also remove some items like fishnets (they don't look good on quest) and lower a lot of texture quality like eyes, normals, underwear, etc. You really should lower all quality since on pc they're always set to the max (or well, high, like 9.5mb high for each). If you keep the skin at 1k it'll be like 0.6, and personally I'd keep the skins medium at that size too.

Also remember to gesture manager test to see if there's other textures (like the alt skin) to lower the quality of.

I suggest using VRCQuestTools, Thryallo Performance tools, and FAC10Utilities as tools to help.

I can send a link to a quest version if you want soon.!