Below are suggested steps to addressing a lagging cursor on a laptop:

1. Identify if the problem is having a general impact on all the applications or if it is specifically impacting a particular application
2. Check the device driver and update it to the latest version of the driver
3. Check the battery power for the device, if it is running on battery power, make sure the power settings are set to maximum performance
4. Adjust the cursor speed and sensitivity as per the user’s requirement
5. Disable the cursor shadow or acceleration