So you're saying CPU power is the issue I'm having? It's just such a night and day difference with Logic Pro 9 vs Logic Pro X. I don't know if I have a 64bit core duo but Logic Pro X tries to run with that as its setting. There are several Apple certified re-sellers that have used machines with a limited warranty. Suits my needs, and compliments my 2011 quad MBP. I wasn't to thrilled with Apple's new machines, so I purchased a used 2012 2.3GHz quad Mini. The Intel i series CPU is in it's 8th generation. You could max-out the RAM, and get an SSD, that will speed up your filesystem, but it won't make the CPU more powerful. Logic X uses more resources by far, it's a 64bit app running on a 64bit OS. Wow you must have the rare 64bit core duo! There are a lot of variables, RAM, speed and free space on system drive.

Or do I need this quad core business to even use my computer for mixing projects? I'm beginning to mix a lot of other people's music now and don't have control over track size and what recording quality so the option to use plugins as needed is really important to me. Is my computer just not going to work with it's processing power or is it possible that maxing out the RAM to 16GB (currently at 12GB), and buying an SSD Hard-Drive would fix processing deficiency. I'm working with project sizes of up to 50-60 tracks with plugins and it's just not functional. I changed the buffer size, changed 64-bit summing to 32-bit, added 4GB of RAM, used more busses, used the program on a different account on my computer, selected the multithread option to just playback and more and still nothing. I upgraded to Logic Pro X thinking that would help for some reason. I mean I can't mix with any continuity as the track halts every 20 seconds or so. So I upgraded to Sierra and bought the new plugins and now logic gives me the 'system overload' warning ALL THE TIME. So, I have recorded and mixed on a late 2009 iMac using Logic Pro 9 running on Snow Leopard with really zero issues except the OS was not supported by a lot of plugins I was interested in using. Hey everyone, thanks for reading this as I am super frustrated and having to learn more about computers than I have had to do in a while.

2009 imac for recording