Been having major issues since this last version and the RC

Not sure what has happened in this last update, but Tracks struggle to load up and the whole Gui freezes for up to 10-20 seconds, and when I go back to browser to prelisted it all freezes up before it will work, never encountered any issues in past although have noticed this glitching/freezing becoming more and more evident over the last 2 updates until now its peaked.
also having a lot of controller issues with my DDJSX, A mapping I have made and the Cross mapping has a few issues now, one of them being that hotcue 2,6,7 can freeze or stick, yet nothing has changed in my setup.
I am also noticing more and more MP3 failing to work they play a few seconds then skip to end, yet are standard files that should play and still do in other DJ software I have tested in they show they are okay in the tag list with track length etc, so this I don't really understand what Cross is differentiating/singling these out.
but I probably have at least 100 tracks that will not play in Cross, some did now don't others never have.
not had a great deal of time to use Cross and previous beta/RC the last couple have been really quick to air, I blinked and already in a week or less the rc was out and then soon after the official release, so unfortunately I have not had time to report all my finds I don't think I did, maybe, so Not sure if you area ware of these issues I have, but thought I would mention, I just hope things don't get any worse, it has become a lot more unstable, get crashes quite often now as suppose to never.
any idea on any of this, especially this controller issue that has just reared up.
also having a lot of controller issues with my DDJSX, A mapping I have made and the Cross mapping has a few issues now, one of them being that hotcue 2,6,7 can freeze or stick, yet nothing has changed in my setup.
I am also noticing more and more MP3 failing to work they play a few seconds then skip to end, yet are standard files that should play and still do in other DJ software I have tested in they show they are okay in the tag list with track length etc, so this I don't really understand what Cross is differentiating/singling these out.
but I probably have at least 100 tracks that will not play in Cross, some did now don't others never have.
not had a great deal of time to use Cross and previous beta/RC the last couple have been really quick to air, I blinked and already in a week or less the rc was out and then soon after the official release, so unfortunately I have not had time to report all my finds I don't think I did, maybe, so Not sure if you area ware of these issues I have, but thought I would mention, I just hope things don't get any worse, it has become a lot more unstable, get crashes quite often now as suppose to never.
any idea on any of this, especially this controller issue that has just reared up.