Except their window system rewrite actually slowed everything down. Every single os release has added bugs to the graphics layer. I've been maintaining a simple little screensaver since Mac os beta (almost 20 years old now) and the last 3 or 4 releases there's always something that breaks it. Bug reports go unheeded.
Re:I think I found a Mac kernel bug?
by tambourine_man on Sunday January 28, 2018 @02:10PM
(#16252827)
May I ask which screen saver?
Sure, but it doesn't help when you are rewriting fundamental parts of the stack like the window server, for instance.
And I'm very glad that they did, the move to Metal shows they are committed to the Mac and not standing still. Just don't treat us as involuntary beta testers.