Does anybody here use their SP3 to edit RAW photographs? I recently replaced my few years old desktop with SP3 (i5/256/8GB) but I haven't been impressed with the speed in Lightroom. Editing 16mpx raw files is slow and erratic. When I open the file it takes few second for it to load completely and even longer if I zoom 100%. I'm not sure if it's the SP3 at fault or because I'm using Seagate 2TB portable drives as storage for the RAW files.