MuseScore gets steadily slower as I use it
When I use MuseScore lately, it starts out fine but as I use it it gets steadily slower. I restart MuseScore, and the same process takes place. I've even tried restarting the entire computer, and it's the same story: within a minute it's responding half a second late, within two minutes it's a full second, pretty soon it'll be three seconds.
Is there anything I can do to fix this problem? Please help, this is intercepting a major composition from making progress.