Why is it so slow to import a 3D model in Godot?

Godot Version 4.2.2

I recently tried to import a model and a character into the Godot software, but I noticed that the import operation is very slow and even impossible in some cases. Is there a specific reason? I did all the possible methods, changing the version, changing the extension of the files. , but none of them helped me, but the software of the Unity engine is not like that at all. I can import files with a volume of 10 gigs into the Unity engine at once. My system is very strong and is considered one of the most up-to-date systems. I hope someone can solve this problem. Because I really like the Godot engine and I don’t want to migrate to another engine.

Can you link to the assets you’ve tried to import? What’s the texture resolution, and how many textures are used? Texture import is usually the slowest part due to VRAM compression taking a while.