If this was an IDE or something the argument would hold more I think but it’s a whole engine. Unreal Engine is very much set up for a specific workflow and makes assumptions about how it will be used. Every engine does. It’s harder to optimize a whole game engine like Unreal. Sure some people are doing it, or some are just disabling features right and left, but I still place that on the engine, on it’s defaults, and it’s assumptions, just as much as on the developers using it who just leave everything as default.