PS is running (and processing) very, very slow when re/saving files, moving text, layers, etc. I'm typically running the same size files prior to having these problems. Any suggestions??? Thanks! (Windows XP, 2 Gig RAM, Photoshop CS)
When you launch Photoshop, the program sets aside a certain percentage of RAM for it's use. This may seem counter-intuitive, but if too much RAM memory is allocated, performance may be compromised (read slow). Try this...
Choose Edit > Prefs > Memory and Image Cache
Change Photoshop's Memory Usage to 50%.
See if this helps.
For more on this subject visit the Adobe Support Knowledgebase article entitled "Memory Allocation and Usage".