Yes, Kitty is too resource hungry for my taste as well. And the Alacritty devs outright refuse ligature support because all existing implementations are too low

Yes, Kitty is too resource hungry for my taste as well. And the Alacritty devs outright refuse ligature support because all existing implementations are too low quality in their opinion. So now I'm just using st with a ligature patch. Not perfect and rather slow when dumping a lot of text to stdout, but it's otherwise snappy and does everything I need.