Spaces / Expose lag on Mac


When you use Spaces or Exposé there is a sufficient amount of lag. The animations are slow and stutter.


This can be caused by the BeamSync feature being enabled.


To disable BeamSync follow these steps:
  1. Press cmd + Space to bring up the Spotlight search.
  2. Type Terminal and press Enter.
  3. Inside the Terminal window type the following and press Enter:
    sudo defaults write /Library/Preferences/ Compositor -dict deferredUpdates 0
  4. You will need to enter your password and press Enter.
    • It won’t show any characters when you type.
    • If you do not have a password then set one first.

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