This game looks fantastic and fun to play. I’m really impressed with your menu update, it looks very professional! You mention having performance issues, it seems you could save a ton of draw calls by using instanced static meshes (if you aren’t already). Basically just making a blueprint that contains your set of static mesh building blocks as instanced static meshes and then adding an instance with the correct TRS to build out chunks of your room. In the end, each of your rooms would only be as many draw calls as you have building blocks.