Change your Mac display’s resolution
Your display’s resolution determines the size of text and objects on your screen. By default, your Mac automatically uses the best resolution for the display. While it’s best to use the default resolution, you can manually set the resolution to make text and objects appear larger on your screen, or adjust it to make text and objects appear smaller so you have more space on your screen.
Set the resolution for your primary display
On your Mac, choose Apple menu > System Preferences, then click Displays .
Select Scaled, then select one of the options.
Set the resolution for a connected display
If you have more than one display, additional resolution options are available after the display is connected.
On your Mac, choose Apple menu > System Preferences, click Displays , then click Display Settings.
Select your display in the sidebar, then do one of the following, depending on your display:
Click the Scaled pop-up menu, then choose a scaled resolution for the display.
Choose Scaled, then select the resolution you want to use.
You can select “Show all resolutions” to see additional resolutions for the display.
Depending on how you adjust the resolution, some app windows may not fit entirely on the screen. Using a scaled resolution may affect performance.