The Apple hardware was based on PowerPC chips in the early and mid 2000′ was very slow compared to PC’s of the time. I used Macs up till Windows 2000 – which was far better than Mac OS9 eg, it included multi-tasking, in those days if one application crashed the whole Mac would crash too. I am now a CIO of a major company – all PC’s no Macs. Just to introduce myself, I have been a user of Photoshop for 20 years, used to teach it as part of a consultancy job I had at the beginning of my career, then on Macs. I have lost count of the number of PC’s and Mac’s I have used over the years for photo editing, and the choice of which one and my recommendation to others has changed over the years.