Hi TT GR.Pro
Do your Blueprints contain StaticMeshes or are they Instanced StaticMeshes?
If they’re just normal StaticMeshes - you’ll get a big boost by converting them to instances, but using a single, global ISM/HISM Component for each type of mesh rather than having a component in each Blueprint.
Something like that isn’t too hard to do - it’s a lot faster in C++ if you can - otherwise you can use something like rdInst on the marketplace (and rdBPtools to convert the BPs to using it)