Since I downloaded 9.0.0 I have been having performance issues with DisplayFusion. Buttons on the title bar will often not show for new windows, clicking them may have no effect, etc. If I then check CPU usage it will be around 13% (normally about 0.3%).

I need to reset DF in Task Manager and then restart it, which will resolve the problem for several hours.

How can I revert to the previous version? (which was solid as a rock)