The default display refresh rate for Mac is set at 60Hz, and it’s recommended that you keep it unchanged unless you really have a good reason.
For MacBook Pro 16” and after, and the Apple Pro XDR Display, follow these simple steps to alter the display refresh rate:
Step 1: Pull the Apple menu down and select “System Preferences”
Step 2: Select the “Display” tab from the top
Step 3: Hold press the “Option” key and click on the “Scaled” button and this should bring up the Refresh Rate pop-up menu.
You can set your built-in Retina display or Pro XDR Display’s refresh rate to 60, 59.94, 50, 48, 47.95 Hz. While a higher refresh rate gives you buttery smooth animations, it taxes your notebook’s battery life and uses more resources.