That’s the touchpad that’s on my Toshiba laptop. After you are done typing there is a long delay until it moves. Sometimes while moving it, it is laggy. Almost like the laptop is slowing down, but I don’t think there’s any problems when I use a bluetooth mouse. You could try to replace the touchpad.
The touchpad could be defective. To return it, I’d have to take the SSD out and put the old drive back in. Also would have to take one of the RAM sticks out. They might be able to tell I opened it. There is some scratches on it from my screwdriver.