Computing & Information Services
Make the Finder faster
In more recent versions of MacOS X (10.6-10.8), the Finder displays the Size column by default. This means it has to calculate the size of all the things in each folder, which slows down the display.
To turn it off, click on the Finder then choose Show View Options from the View menu. Uncheck the Size box, and then push the Use as Defaults button at the bottom.