Nexus 2 on many tracks in Garageband

HI! I BEEN USING ONLY GARGAGEBAND SO FAR FOR PRODUCING MY TRANCE MUSIC. ALTHOUGH I HAVE A MAC, THIS MAC I GOT BACK IN 2011 WHICH HAS GOTTEN OLDER. NOW EVERY TIME I MAKE A NEW PRODUCTION, IT TAKES LONG TO OPEN BUT ALSO WHEN I PLAY THE SONG, IT STOPS AT TIMES AND I SEE THE ARROW ON TOP TURNING RED MORE OFTEN. I THINK IT DEALS MOSTLY WITH HAVING SO MANY NEXUS 2 ON SO MANY TRACKS IN ONE SONG BUT SINCE I GET ALL MY SOUNDS FROM NEXUS 2 I HAVE NO CHOICE BUT TO USE NEXUS 2. QUESTION IS… IS THERE ANYWAY TO SIMPLY USE ONE NEXUS 2 ALONE AND THEN PICK DIFFERENT SOUNDS FROM IT AND RECORD ON DIFFERENT TRACKS, IS THERE ANY OTHER WAY TO USE THESE PLUG-IN’S OR SYNTHESIZERS OR AM I USING IT WRONG ALL THIS TIME? SOMEONE PLEASE HELP ME SO I CAN HAVE MORE MEMORY WHEN IT OPENS. THANKS.

I don’t use garageband but it looks like you can lock tracks in the same way you can freeze them in logic, this is the same as bouncing them to audio, the only difference being you keep the midi and instrument in the channel and can go back to it.br
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[url]http://thegaragebandguide.com/the-4-step-plan-to-a-healthier-happier-garageband[/url]