Problems with importing static meshes with "high" polycount (500K) , need help!

[HyperUp78]

@darthviper107

UE4 has to process the mesh when it imports, which takes a lot of extra processing time. If you don’t change any of the default import settings it’s even worse because it will try to generate lightmap UV’s which adds even more processing.
It’s likely though that you don’t need a mesh that high poly, unless it’s like a giant tree like Avatar then most likely you’re overdoing it. There’s tree systems like Speedtree that optimize stuff like that for games.

In the UE5 (2021) we able to import any highpoly mesh from CAD or sculpt programs without any limitations?
I want to keep the same quality of skeletalMesh without decreasing file size and for now I’m stuck at this point.
Maybe someone has compiled source code of UE4 that allow to import large meshes like that?