These days, unfortunately, people seem to have an issue with anything that so much as resembles a load time.
I agree that, if that load time is the only reason not to disable DelayedLoad, then it should be default.
That said, my laptop isn’t exactly a spring chicken and I haven’t had any issues with CIU before - probably because I also have plenty of free space though.
That would probably only be possible if it’s a unique CIU feature and not a feature of the underlying engine, unless the API makes provision for it. As someone with coding experience I would be surprised if that would work, unfortunately (but I’m not the one coding the game so I don’t actually know
so I need to stop talking).