Subject: bug#42406: Mouse-wheel scrolling can be flickering

From: martin rudalics <[email-masked]>
Date: Wed, 16 Dec 2020 09:46:18 +0100

> Performance does not degrade when only the two calls of
 > wset_update_mode_line you mentioned are commented out. However, with
 > just commenting out these two instances, I still have a scroll
 > performance problem when scrolling by using the scroll-bars. Could you
 > also identify the instance concerning this?

I forgot how Emacs precisely handles that.  Maybe Eli can tell.

martin