--- a/.vimrc	Wed Oct 09 20:06:10 2013 +0900
+++ b/.vimrc	Wed Oct 09 20:20:28 2013 +0900
@@ -54,6 +54,7 @@
 
 " powerline
 set laststatus=2
+set ttimeoutlen=0 " eliminate delay after <ESC>
 
 " ctrlp
 let g:ctrlp_max_height=30