For mobile you want to include simpler texture maps. Albedo maps are fine along with normal maps but more than that and it might start to affect performance. I’d mostly be concerned with the shader type you use (use mobile shaders) and the size of the texture maps. Don’t use 4k texture maps for a character that could easily use a 512×512 map. Another thing to consider is using one bigger texture map for multiple characters. If all 10-20 of your characters could share one massive texture map that would save on memory and improve performance.
