Comment by matthewmacleod
5 years ago
Isn't Terminal.app famously pretty speedy compared with most other terminal emulators? In fact, there's a link from this article to another of Dan's posts that's precisely about terminal performance - https://danluu.com/term-latency/
It's a few years old now so I've no doubt that Alacritty's performance has improved, but I'm suspicious of the idea that Terminal.app is noticeably slow.
I've always loved the low latency of Terminal.app (particularly over iTerm2, which I find unusable), but recently noticed that it has gotten a little worse in Big Sur now that the "Antialias Text" option is broken on non-retina displays.
I assume the extra forced compositing/rendering/whatever being imposed by antialiasing is to blame, though I could be wrong.
Catalina: https://i.imgur.com/G66HpJ6.png
Big Sur: https://i.imgur.com/R5dlzdj.png
rdar://FB8901170 if any apple employees happen to see this :)