Not to mention that WindowServer seems to take 100+% cpu since the upgrade. Also I can't paste filenames in the save file dialog in some apps. And the URL field in Safari is just weird.

My computer was running so slowly that I had to minimize transparency in system preferences somewhere. I think I also turned off opening every app in its own space. And I hid the icons on the Desktop in Finder settings somehow, which helped a lot. There are countless other little tweaks that are worth investigating.

I also highly recommend App Tamer (no affiliation). It lets you jail background apps at 10% cpu or whatever. It won't help with WindowServer or kernel_task (which also often runs at 100+% cpu), but it's something.

I can't help but feel that there's nobody at the wheel at Apple anymore. When I have to wait multiple seconds to open a window, to switch between apps, to go to my Applications folder, then something is terribly wrong. Computers have been running thousands of times slower than they should be for decades, but now it's reaching the point where daily work is becoming difficult.

I'm cautiously optimistic that AI will let us build full operating systems using other OSs as working examples. Then we can finally boot up with better alternatives that force Apple/Microsoft/Google to try again. I could see Finder or File Explorer alternatives replacing the native ones.

> Not to mention that WindowServer seems to take 100+% cpu since the upgrade

That's because some app is spamming window updates.

It's been an ongoing problem for many releases. AFAICT, WindowServer 100% CPU is a symptom, not a cause.

I think we're already seeing the operating systems that AI can build, and I don't think they've been an improvement.

QubesOS seems a great migration target: it runs Apps/OS in secure sandboxes - and even with that overhead doesn't seem worse than the terrible MacOS 26 performance.