Separate Minecraft Vanilla character creator items from Marketplace/Collab

This is mostly the case already, but when there are licensed collabs, like with Sonic for example, they are sometimes grouped with the original Minecraft items. It makes the already cluttered character creator inventory much more difficult to sort through. Especially because the lag in those menus are already HORRIFIC. So I suppose on top of this I really would like to ask the Mojang marketplace team to focus on reducing lag and loading issues on the character creator. Often I have to just reboot the whole game to load even a vanilla Minecraft eye item or something. It's unfortunate because I think the character creator feature is actually pretty cool, but it's so hard to use. Especially cross-platform! It's always failing to transfer between systems.