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.
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.
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.