Like 58% faster than iTerm2 in my Late 2013 MBP retina.

  find ~
  iTerm2    1m20s
  alacritty 47s
  

where the find command itself uses between 40% and 50% of a core, the TERM emulator process uses is 5x in iTerm2

  iTerm    130% (peak up to 140%)
  alacritty 25% (peak up to 29%)

I'm very excited with this and I'm going to follow the development of alacritty :)