Hi guys; I have an iMac i3 3.06Ghz 4Gb 10.9.4. I generally use Logic Pro X for audio editing and mixing. My problem starts in this point... When cpu usage over %40, my cpu start choking and it's causing audio distortion. I getting an error from audio editing programs such as logic, garageband, ableton live etc. This is the Activity Monitor's screenshot when cpu is choking... I cant use my cpu with full capacity. Can you help me?