.obj import and compiling shaders takes forever

I noticed, that any .obj import and compiling shaders takes an incredible long time.
Any recommendations how to speed up that process?

200 objects, import and compiling on a Threadripper and RTX2080 takes about 35minutes.

I was running multiple tests. No matter what, it takes really very long.

I also tested Datasmith import:
Nanite works, but LUMEN is broken.


That makes about 10sec per object. Now it depends on polycount and all that, but i do not think this is something really slow or long. Those times were always in such range.

Importing is not something you do all the time, you can do it overnight or when you out for lunch or shopping etc. Same as building lights (some time ago).