tmux - Spacemacs escape key needs delay to work -

i have clean install of spacemacs. when press escape enter normal mode press u uppercase word. if wait second, undo last action.

i'm assuming evil-mode or emacs key-chord feature in action. how can change behavior?

spacemacs, particularly develop branch should work right out of box without delay. however, have found delay happens when running emacs inside of tmux. should see if trying run inside tmux or screen, , if are, see if problem happens when run emacs directly inside terminal, without terminal multiplexer.

if tmux problem, can fix with:

set -s escape-time 0 

you'll have find equivalent in screen if happening.

see: https://bitbucket.org/lyro/evil/issue/69/delay-between-esc-or-c-and-modeswitch