Remote possibility: I've had issues with org-mode being slow when using
linum-mode in the past:

E.g.,
http://stackoverflow.com/questions/5229705/emacs-org-mode-turn-off-line-numbers

So you might want to make sure that's not enabled.


On Sun, Apr 13, 2014 at 12:49 PM, Nicolas Goaziou <n.goaziou@gmail.com>wrote:

> Karl Voit <devnull@Karl-Voit.at> writes:
>
> > However, my (long) Org-mode files with the performance issues is not
> > a situation I am satisfied. Last week I presented Org-mode at a
> > Linuxdays-event here in Graz and I had to apologize for all the
> > weird behavior. This was somewhat embarrassing :-(
>
> Does this happen on stable branch?
>
> > Sure. After a couple of minutes, I C-g and this is the output:
> > http://paste.grml.org/1898/
>
> Would the following patch improve the situation?
>
>
> Regards,
>
> --
> Nicolas Goaziou
>