Over my many years of running Mac OS X Hints, a huge number of defaults write hints were published.
For those who aren’t aware, defaults write is a Terminal command that can be used to modify applications’ settings. While you can use these commands to modify settings that are present in an app’s Preferences panel, the more-common use of this command is to set non-visible (hidden) prefs that you won’t find in the GUI.
Here are three of my favorites–three that not only perceptually but actually increase the speed of your interactions with your Mac. I still, to this day, execute these commands on any new Mac I set up.
Some great tips here to make some of your Mac’s small operations go faster. Check the videos to see how much of a difference they make.
Source: Speed up your Mac via hidden prefs | The Robservatory