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I use vim on Mac OS X, but this is realy slow in and iTerm.

Progress over many lines becomes tedious.

some idea of solution?

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Need more details. Are other commands slow? Does ps/top or ActivityMonitor show lots of CPU usage by other processes? Are you editing a very large file? – Doug Harris Mar 11 '10 at 21:17
I only see vim slow. When I try down the cursor through of many lines, the processor monitor show many activity. No very long files, approxemately 200 lines. – juanpablo Mar 12 '10 at 0:52
Is this only a problem with auto-repeat, or is Vim sluggish when you enter text or navigate up/down with individual key presses? Have you checked your key auto-repeat rate in System Preferences? – Chris Page Aug 15 '12 at 3:10
I experienced the same thing and this solved it for me: – Johan S May 13 '13 at 13:07

For me, deleting .viminfo helped.

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Try MacVim. There is also a 64 bit version available somewhere on the blog, which includes a new rendering layer.

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Maybe you have installed some broken plugins or something like that. Try to temporary rename directory with vim configs:

mv ~/.vim ~/.vim.backup

And/or main config file: mv ~/.vimrc ~/.vimrc.backup

And try to use vim without configs

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I try with a empty .vimrc file, but nothing is better – juanpablo Mar 15 '10 at 15:42

I had this problem (just painfully slow) and it ended up being the Consolas font I was using in Terminal.App and ITerm Switching to Monaco in my case sped things up considerably

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my only solution xterm – juanpablo Jan 21 '11 at 13:09
not the issue for me. – user75525 Jul 8 '11 at 4:51

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