Scrolling forward or backward in a song takes an unusually long time (up to 1mn), freezing MusicBee's interface in the process. I tested this on MP3 and FLAC files. The reason for it is most likely that my files are on a remote server that I am accessing through a fairly slow WiFi. This does not happen when the files are stored locally. Still, I do not think the whole interface should be frozen, since it causes Windows to prompt the user to close the process.
Windows 10 x64, MusicBee 3.4.7764