Hi there, So, I use Aperture a lot. After I import the pictures, lets say 20 photos, they all import & it does it's processing thing....then I go to do some basic editing, like auto-adjust or skin smoothing etc etc etc.. The CPU jumps higher than high, 200% - I understand it's doing something, but....it gets to the point where my iTunes will start skipping... Then it'll start jumping about, mouse starts lagging etc... I don't mind it using 3,4 sometimes 5GB of RAM, that doesn't bother me. Here's the MacBook Pro's specs: MBP 2011 2.2 i7 - 8GB RAM - 750 5200 HDD 1GB Video Card Anything I can do? Note: Lion has made Aperture loads better for me, loads faster, but still gets slow. At the moment I close Aperture and leave it for a few mins, then open it back up. It doesn't take long for it to start lagging again! -- Note: I don't really want to move to Lightroom. I like Aperture, looks nicer, I know where everything is, it's integrated with the Mac & iTunes for my iPad/iPhone. Thank you.