Are Materials imported through Datasmith good?

So usually when we import something from Datasmith, the material is always complex

For ex in a PBR material usually there should be 2-3 textures connected to main output node with few number nodes but when we import it has alot of other nodes

I tried importing with Corona and Arnold Materials but it was always the same, so my question is, does correcting each material (Making them as I described above) improve its efficiency ? since we removed alot of nodes ( I’m a total Beginner)

and is there any way to import it in a better way ? UE5 EA2
Thank You