tabbar-mode slows you down?

[Xah Lee]

when using tabbar-mode, i noticed that sometimes it slows down cursor
movement significantly.

for example, i have my keyboard repeat rate set to max in OS, so i can
hold arrow up or down and quickly move about. (e.g. the key for
forward-word)

however, i noticed that sometimes it becomes super slow recently. i.e.
holding down arrow, cursor disappear for half a sec and show up
elsewhere.  Turning off tabbar-mode seems to solve the problem.

this happend with anyone?

can't imagine why tabbar-mode would slow things down.

am using:

;; Revision: $Id: tabbar.el,v 1.7 2009/03/02 21:02:34 davidswelt Exp $
(defconst tabbar-version "2.0")

 Xah ∑ xahlee.org ☄