Largest Geometry Model Freze Issue On Player.json

Dear Mojang, we got a big trouble with geometry model for player.json resource pack file, if we add too much model with largest cube like 10.000+ to the player(not attachble) it will make freeze and lag on a second when a player join the world or when they enter the render distance of another player, its really annoy because the freezes time is up to the model, if its lowest model it dont freeze too much time, but for largest model it might crash the game if the phone cant handle it, and when change the skin it will crash for loading skin too, pls fix it for a better gameplay quality for addon creator.