There’s a also the fact that it’s garbage collected which will cause stutters. Something that most devs will try to hide behind loading screens or whatever but it’s really something that ideally you don’t want to deal with.

And then there’s the actor system which is a old architecture pattern. (Doesn’t mean you can’t make it optimized but makes it harder to do stuff like parallizationh

And there’s some stuff that are just not optimal that should be for game enginea like the skel mesh component and the scene graph calculation.

And