I’m not sure how easy that is with RTX Remix. IIRC the assets aren’t actually added to the game itself, but rather they get injected into the render-pipeline.
Ok? It doesn’t have RTX though, so of course it’s gonna run fine. It’s source engine after all.
They were saying it would run badly if BM had RTX like Portal RTX, because Portal RTX is already very demanding.
Have you had a look at the RTX trailers of games? Most just show of how great the reflections are and barely anything else. It’s like " Look! We’ve got RTX now! See that puddle? Now you see yourself in there! That’s why we added more puddles!"
that’s just part of RTX remix and somewhat the point of that tool. After all you need to get proper RTX materials in there and why not upres the assets as well while you are at it?