I tried multiple "solutions" but nothing worked. I can't try to use USB 2.0 because the laptop only has 2 usb3.0. tried:
20.04 USB keyboard and mouse lag
laggy mouse pointer in ubuntu 20.04
How can I get rid of mouse lag under Ubuntu?
Ubuntu 20.04.1 LTS GNOME 3.36.3 periodic mouse and keyboard lag
Also, it's not the screen refresh hz since the laptops touchpad is working fine.
