Yeah it's in a really bad spot on macOS still, iOS performance is a lot better. I'm sure all of this can be overcome but I'm not certain it's a priority for them.

Considering how good the hardware is supposed to be, iOS is not that great actually. This is why Androids that have benchmarks score way lower than iPhone can actually feel smoother to use. Apple is brute forcing the thing and making all their customers pay, it's useless to have the most powerful chip if you waste all its power running garbage code.

And this is exactly how macOS and iOS feel nowadays: the hardware is supposed to be great but it doesn't feel that good because the software sucks.

I agree with you, just my obsevations from using SwiftUI "in anger" for the last few years, performance is atrocious on macOS and acceptable on iOS, especially with some tuning.

Oh yes, I agree, it's not as bad on iOS for sure. But acceptable for a premium device is a very low bar to clear. It becomes much less acceptable over the years as well, infuriating.

In my country the mainline iPhone start around 1k€ and even the "e" is over 700€. If I had paid 2-300€ like a low-end android device I would find it acceptable but Apple only sells stuff that is the high end of pricing, therefore it is not acceptable.