Change mouse tracking, double-click, and scrolling speed on Mac
To work more comfortably, change the way your mouse responds as you move it. A wireless mouse must be connected with your Mac to make the changes below.
Change mouse tracking speed
On your Mac, choose Apple menu > System Settings, then click Mouse in the sidebar. (You may need to scroll down.)
Drag the slider next to Tracking speed on the right to adjust how fast the pointer moves when you drag the mouse.
Tip: As you adjust the slider, try moving your mouse to see the effect of your changes.
Change double-click and scroll speed
On your Mac, choose Apple menu > System Settings, then click Accessibility in the sidebar. (You may need to scroll down.)
Click Pointer Control on the right, then do any of the following:
Adjust how fast you must click for your Mac to recognize a double-click: Drag the slider next to “Double-click speed.”
Adjust how quickly the pointer moves when you scroll: Click Mouse Options, then drag the slider next to “Scroll speed.”
To change how you secondary click (or Control-click), use Keyboard settings.
If you have trouble using a mouse, you can turn on Mouse Keys, then use the keyboard or a numeric keypad to move the mouse pointer and click. See Control the pointer using Mouse Keys on Mac.