bug#34064: openshot 2.4.3 works badly

[znavko]

openshot 2.4.3 under GuxSD works in an off hand way

Note exactly this:

1. have lag when pull image from files list to a timeline - cursor just becomes circle and program stops for 15 seconds. and after that openshot can crash or can also perform image addition to a timeline
   
2. starts playing when cursor is on the start so ugly: waiting for 10 seconds after pressing play and breaks audio in start time
   
3. sometimes it stops when move or edit images length on a timeline
   

The worst bug is waiting 5secs and sound breaking when click 'play' on start postition.

I think should examine and improve openshot from guix repository.