What I can’t stand is even just operating systems alone aren’t responsive. We can render complex 3D worlds at 120FPS but somehow opening a freaking menu causes noticeable lag.
That having been said I do agree that it is disappointing how sluggish some apparently-straightforward applications have gotten despite the hardware performance increases over the years.
Mac, Linux, iOS and Android all have the same sorts of issues.
In Linux you have a choice. dmenu is instant for me. I bet there's a graphical that does what you want, quickly.
In Android I don't recall the various stock AOSP components having any performance issues, just the custom carrier and vendor stuff.
A simple rsync from one hard drive to another is enough to make the system unusable until it completes.