Photoshop Tutorials » OptimizingPhotoshop Tutorial

Step 1 - Starting Out
For this tutorial, we're going to be messing with Photoshop preferences. Go to Edit»Preferences and select any one of the options. Step 2 - Type
Click on the drop down menu, and select "Type." The menu should look like the image below. This optimization is perfect for those with a vast amount of fonts, or just a low amount of ram. If you uncheck the "Font Preview Size", it will get rid of the font preview, which will get rid of that unwanted lag when loading all the text previews with the text tool. Step 3 - Cache Levels
Again click the drop down menu, but this time head to "Cache Levels." Cache Settings can be changed from 1-8. If you have a lot of ram (1gb to 2gb), you can go ahead and increase this first setting (the one in the red) to 8. This will make large documents load faster. Next, the memory usage. The default value "55%" is fine for any memory up to 1gb. If you have more than 1gb, you can increase this up to 75%, especially if you have 2gb. It'll dedicate more memory to Photoshop, which will make everything run better. Step 4 - General
Drop down menu, General. This time we're going to look at the History States. I've been caught up in dumb moments where I messed with blending options a little too much, and had them take up my history. This can be annoying. If you have more than a gig of memory, you can go ahead and increase this tick to as much as 75. If you have up 1-2 gigs of memory, you can go up to 100. If you're low on memory (512mb or less), you might want to keep it the same. If you have very little memory, bringing this down a bit can even help further optimize Photoshop. End! Job well done!

Photoshop Tutorials » OptimizingPhotoshop Tutorial