No difference whatsoever. Perceived speeds after an update are usually placebo.
The same bugs still persist: Safari and Textedit do not remember window placement, although Textedit now pops up at some other random coordinates (x=440, y=0) than before (x=290, y=250). Console.app still does not remember window size, nor position. Safari has a new bug where it does not remember window size for file uploads. This seems like an endemic thing with Apple, spreading to more and more apps and circumstances, making the OS ever more unpleasant. (Yeah, I filed bug reports a long time ago, repeatedly.)
With every update, settings are reset, like the stupid Photos app hijacking connected devices, or downloads being restricted to Apple's monetizing facilities. It's like having a helicopter mom watching over you, not trusting your own judgement. They even write protected /usr/local, locking up brew (they must know about brew at Apple, right?).