Every once in awhile Slack dedicates a bunch of developer time to fix UI lag. Loading the emoji autocompletion used to be very fast, and slowed down over time (

Every once in awhile Slack dedicates a bunch of developer time to fix UI lag. Loading the emoji autocompletion used to be very fast, and slowed down over time (we only have about 50 custom emoji.) At some point they refactored some things, made stuff faster, and wrote a nice blog post about it, and the emoji autocomplete was lightning fast again. Then of course, it slowed down incrementally over the next couple months until it is now unbearably slow again.