Or just a really big git repo. Starship includes a timings command, on linux (with an annoying antivirus meddling) this is what I see against one directory:
git_status - 6ms - "[!?] "
directory - 4ms - "<redacted> "
python - 3ms - "via v3.12.9 (.venv) "
character - <1ms - " "
git_branch - <1ms - "on main "
hostname - <1ms - "<redacted> in "
If I go in to my checked out version of the linux kernel, probably the biggest git project I've got kicking around: git_status - 115ms - ""
directory - 4ms - "linux "
character - <1ms - " "
git_branch - <1ms - "on master "
hostname - <1ms - "<redacted> in "
That's typically the worst I see it.
I appreciate Starship also has configurable limits on those timings, too. I've almost never seen Starship hang for very long, as it will just drop the thing that is slow. I sometimes but rarely (usually just starting a new shell, but sometimes if compiling in another window/terminal) see the "[WARN] Executing command git timed out" error and the git_status won't display until the next prompt and that is usually fine.