Mac OS · macOS
Fix a lagging mouse or trackpad on Mac
Source-checked About 10 minutes
Answer
For a lagging Magic Mouse, check its charge, clean the sensor, adjust tracking speed, and reduce wireless interference. Test another mouse or surface to separate a Mac-wide issue from a device fault.
Check the mouse charge
Open System Settings > Bluetooth and check the mouse battery level. Charge a Magic Mouse or replace removable batteries before testing again.
Clean the tracking sensor
Turn the mouse off. Wipe the sensor on its underside with a soft cloth, or use compressed air without inverting the can, then test on a clean, non-reflective surface.
Adjust tracking
Open System Settings > Mouse and adjust Tracking speed while moving the pointer across the same distance several times. If scrolling is the only delayed action, test the scrolling controls separately so pointer tracking and scrolling are not treated as the same fault.
Reconnect the Bluetooth mouse
Turn the mouse off and on. If it still lags, open System Settings > Bluetooth, disconnect and reconnect it, then restart the Mac before changing broader settings.
Reduce wireless interference
Move the mouse closer to the Mac and move USB 3 hubs, cables, wireless receivers, and other possible interference sources away from both devices.
Compare another device and app
Test the pointer in Finder and another app, then try another mouse on the same surface if available. If every mouse behaves normally except the Magic Mouse after charging, cleaning, reconnecting, and removing interference, Apple says the affected mouse may need service.
Video walkthrough
If it does not work
- If every pointing device lags only in one app, update or restart that app before changing Bluetooth settings.
- If Bluetooth repeatedly disconnects, follow Apple's wireless-interference guidance and test without nearby hubs or receivers.
Sources and verification
Checked against official documentation on . Scope: macOS.
Follow the linked first-party guidance if labels differ after a platform or app update.