Obrigue-se a não usar as setas do Vim

Adicione em seu .vimrc

nnoremap <up> <nop>
nnoremap
<down> <nop>
nnoremap
<left> <nop>
nnoremap
<right> <nop>
inoremap
<up> <nop>
inoremap
<down> <nop>
inoremap
<left> <nop>
inoremap
<right> <nop