HI there, I've got a MacMini (late 2014 quad core 3.0ghz) as my main computer where I only process Logic and reverb. I am getting some CPU overload which seems to be getting worse over time. I have never reformatted this machine since I bought it because i've heard that you don't need to do that with Macs. Recently I've heard that this is not totally true and we should reformat our machine once in a while. While i am not sure what is the truth I am also considering buying a new machine. Putting aside the financial cost and considering that I cannot afford stopping to work for more than one or two days what would you recommend me to do. Reformat this machine or buy the new MacMini which has 6 cores?