Laggy touchpad when my laptop is plugged in

[sepideh ahmadi]

When my laptop is not plugged the touchpad's completely normal but once I plug in, I feel like the touchpad gets a little bit laggy and when I ask other people if they notice it too and they all say it's the same, so I'm the only one who notices it and I assume it's because I'm constantly using it, plugged or not so I obviously feel the lag.What could be the matter?

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