Aperture Incredibly slow...
I have a MacPro with 17G RAM - I am using Aperture 3.4.5 and working with a library of about 8500 images, only. The computer became totally unresponsive but that may have been playing iTunes at the same time, other opps open and uncleaned memory. So, I shut down everything I could and ran Memory Cleaner so that now there are 9G free. But Aperture is still running incredibly slow.
I know I can quit and restart the computer - but is there some other reason for this happening??? I need to work on this Library = it's not that big, there is plenty of RAM etc.
Mac Pro, Mac OS X (10.7.5), 17G RAM