Configure Power Management options for high performance

On the menu bar, click the Apple menu icon. and then click System Preferences.
In the System Preferences window, click Energy Saver.
To maximize the performance of your computer, do the following:
- Both on the Battery and the Power Adapter tab, move the Computer sleep slider to Never.
- To keep the hard disk active throughout the session, uncheck Put the hard disks to sleep when possible.
Exit the Energy Saver window.

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