Tablet is lagging

My cursor randomly started lagging out of nowhere while I was drawing in Autodesk Sketchbook. I already reinstalled the Huion App, my drawing software and deinstalled the latest Windows update, and the problem still remains. I even changed the tip of the pen! The hotkeys on the pen and tablet also don't work anymore, even though I recalibrated them after downloading the newest driver.

Firmware: T204_200718

S/N: AAT36SH04004