Is the performance of Photoshop CS2 worse than CS1? Some users out there are saying yes, particularly in Windows. What do these performance woes look like? Well, for one, Photoshop CS2 can take a long time to open files. You may also experience significant redraw problems, with files that worked just fine in CS1, rendering CS2 just about unusable.
Though the culprit has yet to be smoked out, the primary suspect is video card support. These performance and redraw problems are thought to be caused by an incompatibility between older video cards with either built-in memory or less than 128MB of RAM. Also, the code that deals with the user interface was changed for CS2. Adobe is still trying to pinpoint the exact cause of these performance problems. If you are also experiencing performance issues, you might want to try either updating your video card to the latest drivers or, worse case scenario, buy a completely new video card. Contact technical support for recommendations or keep an eye on Adobe's web site. You can also read more here:
http://www.adobeforums.com/cgi-bin/[email protected]@.3bba6ade