I'm incredibly impatient with my tools and I've been running omz for many years. I spend my days in tmux/vim and generally run 6-12 shells at a time.

Some quick troubleshooting many years ago narrowed the vast majority of the problem down to the git plugin, especially for large, old repos.

I disabled the git plugin and everything has been fine ever since.

Figured I'd dig deeper and bring back the current branch name without the bloat at some point, but it hasn't bothered me enough to do it.