1. Check your laptop’s system performance to determine whether the lag is due to a lack of available memory or processor power.

2. Make sure your laptop is running with the correct power settings and that the laptop is updated with the latest software and drivers.

3. Test the performance of the laptop in multiple applications to determine if the issue is consistent across programs.

4. Try connecting with an external mouse and check if that improves the laptop’s performance.

5. Check if there are any hardware conflicts in the laptop’s Device Manager.

6. Run a diagnostic scan of your laptop to detect any problems.