@Kardain: I really wouldn't know what's causing the lag. I never had any issues with it so I haven't got a clue on how to solve this. Sorry.
The iList is mainly eye-candy. It makes the list scroll smoother.
@WarningSLO: Thanks! It's possible in the future I'll include BlueZX3's mediabase (in the "pro" version). So then it'll have all the bells and wissels.
For now you can simply add songs to the playlist and then save the entire thing. They're saved to the location set in RRConfig. I have this location placed in my audiofolder so there is a subfolder in it called playlists. From there I can load the playlists that I have saved.