Hey, I believe you might want to call 1800-Apple about this or get a repair or try to download this
http://www.maclife.com/article/feature/25_ways_speed_your_mac
this may help or MAC KEEPER.
ALSO IF YOU CAN AFFORD IT BUY THE MACPRO ITS THIS HIGH AND FAST PROCESSOR THAT RUNS REALLY FAST it has 12 CORE!!! HERES THE LINK
http://www.apple.com/macpro/
IF YOU LIKED THIS PLEEEEEEAAAASSSEE GIVE ME A SCORE!!
THANKS!!!