Time Machine backups are great, but very slow when a large amount of data/files needs to be transferred (such as the initial back-up). As desgined by Apple the Time Machine background proces is running in a very low CPU priority, giving all other running applications en services priority.
Using the the F3-key should normally activate Exposè/Mission Control. In some circumstances nothing happens when you hit the F3-key or the four finger up gesture.
To solve this problem apply the following defaults write command:
Some of the built-in macOS applications have the possibility to activate a ‘special’ debug menu. One of these applications is Reminders, the debug menu gives you the option to manually Update/Refresh with your iCloud account.
Quit the Reminders application and start a Terminal window, apply the following command:
To improve performance Safari will attempt to prefetch DNS information. In some circumstances this can result in slow or partial webpage loading, or webpage cannot be found errors.
If you are experiencing those problems, apply this tweak to disable DNS prefetching.
There is no system preference setting for adjusting the cursor blink rate in OS X, as with many hidden settings you can change the blink rate directly using a defaults write command (OS X 10.9 and above).
Disable the menu option: ‘Go ▸ Go to folder’ in the Mac OS X Finder menubar.