Most people aren't having significant problems. Most operations are in general about the same speed as 7. Some filters are slower because they're doing more accurate calculations. The healing brush on 16 bit images is significantly slower. Some other operations and filters are faster.
The most common source of performance issues is the file browser. The worst problems occur when the file browser is open and there are large eps or pdf files in the folder for which it needs to get thumbnails and preview images -- once we ask for the thumbnail, the library that gets thumbnails doesn't let Photoshop do anything else until it finishes looking around in the file. That aside, having the file browser chugging away making thumbnails while you're trying to work can slow things down: 1. Turn off "Allow Background Processing", "parse XMP metadata from non-image files and "render vector files" in the file browser preferences. 2. Try closing the file browser after you open the images you want from it. A quick way to do this is to hold down the option key when double clicking an image to open it. Alternatively, if you can afford to do so, let the file browser finish getting all the thumbnails, previews, and metadata for a folder before you begin work there. I routinely import CF cards full of images by starting a copy from the CF card to my local disk in the finder, then pointing the file browser at the folder on hard disk (while the copy proceeds). Then the copy and the file browser cache building happen while I go away and do something else. When I come back, selection and display of items within that folder is snappy and the file browser doesn't slow down the rest of the application because it's not doing anything while I'm trying to work -- it's already done the hard work. 3. To speed up the file browser itself, turn off "enable high quality previews" file browser preference (that will make the previews 512X512 instead of 1024X1024) and set the custom thumbnail size down to 256. That will speed generation and accessing of thumbnails within the file browser. 4. Try adjusting the memory slider (in the memory pane of the preferences panel) down a few percentage points. You'll have to restart photoshop after doing this for the change to take effect. Photoshop CS takes a little more memory than 7 did, and its estimates of what "100% of available memory" means are different. If it's trying to use more memory than is actually available, you'll have bouts of slowdowns as it thrashes on the disk. You can use a tool like the system activity monitor to watch for disk activity, and see if the periods of slowdown correspond to extra disk activity. If they do, this is the likely problem. Russell Williams =============================================================== GO TO http://www.prodig.org for ~ GUIDELINES ~ un/SUBSCRIBING ~ ITEMS for SALE
