sometimes it goes up to multiple s but that goes away when I restart music bee, it seems. But even then it's still ~0.8s.
The ~0,8s delay doesn't go away when I change my audio output device and restart MusicBee.
I didn't have this issue on the I believe 3.5.8698 version you get from the download page, but I do have it from the 3.6.9083 version.