Optimizing performance

To reduce start-up time -There are several ways help to launch Photoshop more quickly.
1) Disabling unnecessary plug-in folder by adding tilde(~) in front of plug-in folder.
2) Relocated plug-ins to secondary folder (easier to be done in Mac OS platform). Then, to load back plug-ins, just hold down Ctrl+Shift (Windows), Cmd+Shift (Mac OS) immediately after you launch Photoshop and then specify the additional plug-ins folder when asked.
3) Preferences dialog are saved each time you exit and launch Photoshop. The file sometimes are saved may become corrupted. If that happens, just hold down Ctrl+Alt+Shift (Windows), Cmd+Opt+Shift (Mac OS), a split second after you launch Photoshop and choose to delete the Preferences when prompted.
4) Layers,Channels and Paths palettes all store thumbnails by default, these thumbnails are continually updated as you work on the image. A way improve the redraw time, you can customize the palette previews size to smaller one by clicking at Palette Options from the palette’s menu choose the smallest on none in size.
5) As we know, in the computer processor basically work as brain, and RAM more likely as heart. All the software in our computer, from the operating system to applications are relied heavily on how much RAM in order to improve the efficiency and speed. To allocate higher RAM in Photoshop, go to Preferences/Memory & Image Cache and specify a percentage (%) in the Memory Usage section of the dialog box.