Seems like everything the epic team touches turns to trash. Metahumans have always essentially been that, but since the acquisition they seem just overall worse off…
It was a cool concept, but not one that should be entertained for gaming really.
Cinematics? Sure.
Anyway
You need to reduce the number of bones in the skeletal meshes to get back some performance.
You can do so in the LOD settings, so it shouldn’t be overly-complicated to go down to a bare minimum of 17 or 18 bones.
Doing that would get some performance back up.
The rest of the issues is overly inflated materials, badly made skins/materials. You’d have to know how to make characters to fix/address that.
because of stuff like metahumans, people pretty much have no idea of how to manually create characters. Most won’t even know the difference between a groom and a hair card.
And thats another thing, the lower the amount of groom the better the pefromance. So going with lod hair cards would be the way to improve performance for that.
I do not know for a fact, but I seriously doubt meta humas include haircards or a system to bake out the groom to cards.