Change your Mac display’s resolution
Your display’s resolution determines the size of text and objects on your screen. By default, the resolution on your display is set to show the sharpest text and the most detailed images. 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
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
Press and hold the Option key while you click Scaled to see additional resolutions for the second display.
Select a scaled resolution option for the second 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.