Problem: The default ttimeoutlen is very long. Solution: Use "100". (Hirohito Higashi)
Problem: Loading defaults.vim with -C argument. Solution: Don't load the defaults script with -C argument. Test sourcing the defaults script. Set 'display' to "truncate".
Problem: Defaults are very conservative. Solution: Move settings from vimrc_example.vim to defaults.vim. Load defaults.vim if no .vimrc was found.