Plugins and an really empty map would be a good idea. I will try it and let you know about that.
@ClockworkOcean Yes the deep structure is because of my function library. That spread all references all over the place, also if a blueprint just need a small function, it will load all of them.
But does it even care if there are stuff that still be loaded? Like player or helperfunctions to get components from the player? But yes, that doesnt look very nice 