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When I open a ruby based file (.rb,.erb) in nvim, it causes my whole laptop to slow down!

This seems to be caused by sheerun/vim-polyglot that I use for syntax highlighting, specifically the ruby module.

Any one have a better option or a way to fix this?

nvim config

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It seems that if ruby path is not set correctly during vim compilation, it slows down vim when editing ruby files, check this post.

Also, using old regex engine (set re=1) rather than the new one speed things up apparently.

  • Whilst this didn't completly solve the issue, it did noticeably speed things up! Specifically I used: let g:ruby_path = system('echo $HOME/.rbenv/shims') to manually set the ruby path so I wouldn't have to re-compile neovim. I'll set this as the answer as this does explain the issue and provide a partial solution (maybe a complete one?). – Thermatix Apr 11 '18 at 9:16

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