I wrote a minimal vimrc file to be used on external servers, as a replacement
for my Neovim full config. I recommend minimal settings discussed by Romain
Lafourcade if you’re lacking inspiration or want to
try some zero-plugin config, BTW. It appears that shift insert in a rectangular
selection is very slow with default settings in Vim 9. The culprit seems to be
ttimeoutlen which defaults to 1000 (i.e., the default value of timeoutlen).
When set ttimeoutlen=100 like in Neovim, everything works smoothly. #vim