--- a/.emacs-my	Tue Nov 13 20:07:21 2012 +0200
+++ b/.emacs-my	Sat Nov 17 20:29:05 2012 +0200
@@ -592,6 +592,9 @@
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 (message "highlighting")
 
+;; Increase scrolling speed by defer consuming operation.
+(setq jit-lock-defer-time 0.01)
+
 (setq font-lock-maximum-decoration t)
 (global-font-lock-mode 1)