In Photoshop, you can specify up to eight low-resolution versions to store, in order to quickly update and redraw the on-screen images as you work. However, the more cached versions you have open, the slower Photoshop responds when opening files. Generally, Photoshop will default to six cached versions. When the image cache setting is adjusted to one, only the screen image currently up is cached, essentially disabling image caching. Setting the cache higher than four shows an improvement in performance for larger images. To adjust, choose Edit > Preferences > Memory & Image Cache, and enter a value from one to eight. Photoshop must be restarted for the change in cache setting to take effect.

With these adjustments, you can quickly and efficiently store cached versions of your image, allowing Photoshop to redraw these low-resolution images faster. Combine proper cache levels with a shared storage system optimized for Photoshop and your workflow speeds up dramatically.

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