GIMP is a popular cross-platform image editor available for Windows, GNU/Linux, OS X and more operating systems. It is open source and available as free software. In this article I will introduce you about some options to optimize your GIMP according to you. However GIMP is already optimized.
There are some options for memory management. If you would like to increase or decrease these number, you can do so in the Preferences dialog.
1. Select preference forn Edit menu.
2. In the ‘Environment’ panel you will see the following options:
Minimal number of undo levels: Specify how many levels of Undo you want available.
maximum undo memory:You can also set a memory limit for undo levels.
Tile cache size: During the data processing and manipulation of pictures, GIMP becomes in the need of much main memory so if you have enough virtual memory then set the tile cache size as high as possible.
Maximum new image size: if you works only on small images, you can reduce this number.
Number of processors to use: Gimp uses multi-threading mechanism, which means GIMP will use of all the processors. You can decrease the number of processor if any other program needs more processing which runs parallelly on the system.