Figured out why AIMP was lagging so badly, for anyone who might care. It was the remote app for Android screwing things up. I removed the plug-in from AIMP and it is now working really well, definitely a player I can recommend. It is free, can do tree view of folders which is a must for lazy c*nts like me who refuse to tag thousands of albums properly, and has a good looking interface. Selectable output (unlike Clementine, or maybe I just couldn't find them) also.