>>2793433Ucupaint uses a special node of his for colors (in Blender), there's no actual color texture on his models. Also, if the scenes are insanely laggy it's cause he set the normal detail to 999 on every single material, gotta manually set them to 0 (or just delete them and use your own stuff teehee).
Speaking of him tho, if you have his Hasumi or 2nd Marine I would gift you the world (also I have this cute vampire if anyone wants-- she's fully 3D despite looking like a vtuber sprite)