Why can't I load realistic models into Godot?

Why can’t you upload large and many realistic models into Godot, it just crashes???

Can you link to the models you’ve tried to import in Godot? Without this information, we can’t do anything.

Note that “high-poly” models are not designed to be used directly in game engines without some form of conversion to microfacet-based geometry (such as Nanite), which Godot currently doesn’t support. You need to use game-ready models, which are also called “low-poly”.