Score editing extremely slow
Editing large scores is extremely slow. Even changing the pitch of a note or the duration takes at least ten seconds. In previous nightlies, each note took only about one or two seconds to insert -- laggy but tolerable. The .mscz is only 78KB; I did not have performance problems with even files close to the 256 KB limit on musescore.com.
(I am on Windows 7, using build 2013-11-14-2208-3977d1f.)