How to get Fuse CC(Mixamo) quality in UE4?

Hello guys, I made a character in Adobe Fuse (Mixamo) and exported it to Unreal Engine. After that tweaked the materials, but the overall quality still feels pretty low (the preview quality of mixamo looks so much better).
Do you guys have any idea how to achive better quality with the materials? (I used high quality textures: up to 4k)

Mixamo quality:

UE4 Quality:

Material:

Right for starters, you can export only the textures from fuse, and there is an option to export specifically for UE4. So do that, and use the roughness and metallic rather than glossy.

Whats the main issue you want to be changing with how this stuff looks?