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I am super bummed out: My iTerm2 commands that were previously fast before Big Sur now crawl. Worse, when opening a new terminal it can take up to 50 seconds for the shell prompt to return.

What is happening here and how to I stop this from happening? I can SSH into a remote server and running commands (e.g., a basic ls) are still super snappy.

Is there some workaround for this?

Note, I tried setting “Session: Enable Session Restoration” to “No,” but this does not seem to have fixed it at all.

Giacomo1968
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Scott Skiles
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  • Odd. I would check if iTerm2 is fully up to date. If that doesn’t work, I recommend uninstalling it from the system with [AppCleaner](https://freemacsoft.net/appcleaner/) and trying again. If all that fails, I recommend reporting an issue [to the developers of iTerm2 here](https://gitlab.com/gnachman/iterm2/-/issues). – Giacomo1968 Dec 13 '20 at 23:36
  • Interesting... today iterm2 is snappy when I type but opening a new terminal takes ages. Now tmux in iterm2 is still slow. The investigation continues. I'll update iTerm2 and maybe update tmux. – Scott Skiles Dec 14 '20 at 11:15
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    Bump. Same issue. – Scott Summers Feb 22 '21 at 06:12
  • anything new with this? – Adam Delarosa Mar 17 '21 at 14:13
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    Especially pasting longer text can take long. 200 lines took about 10 minutes in my case. – Berik May 13 '21 at 22:15
  • Updating my iTerm2 fixed the issue for me. `Build 3.4.8` is what solved mine. – JRajan Jun 14 '21 at 07:04

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