In article <GGmrd.37046$>,
says...
CS is a slow and erratic performer on many machines. I still have PS7 on the same machine as CS and doing the same tasks in 7 is faster and without the cursor lockouts described above.
This is not related to viruses, spyware or other extraneous causes. It is intrinsic to the programming of CS itself, probably Microsoft style code bloat.
CS is very sensitive to background tasks running on the computer. For best performance while working in CS turn off your antivirus program and firewall and any other bacground programs you do not need. Norton is an incredible resource hog and interferes with the installation and running of many programs. Zone Alarm is also an incredible resource hog. Niether program is needed while working in Photoshop. If you have doubts just turn off or unplug your connection to the DSL/Cable router (if you connect to the internet through a router with a hardware firewall the software firewall is not absolutely necessary anyway).
In versions past, I had problems with Norton on installation. Last two versions seem to be better though. On my main workstation, I still have PS6 & PS7, as well as CS. Other than booting up the programs, they seem to be neck and neck with each other. I'm not doubting your statement, as I have not done any emperical tests, but seat-o-the-pants feel, puts them close. This is, however, without the Browser, as it is quite slow.
It would be a good test for the OP to turn off anything else, as you suggest, just to see if there is some resource hog there. In Norton, only the LiveUpdate, seems to slow any of my machines. As I got near expiration on one ME machine, it seemed to "phone home" every 15 minutes, then flash a " Subscription About to Expire in ____ " message. I finally had to turn THAT part off to get any work done. Normally, Norton in general (SystemWorks 2004) is much better behaved, than previous versions.
Hunt