How To Restart Mouse Driver?

I have a fairly new installation of Kubuntu 18.04. It hasn't happened while I am at the computer, but I often come back to find my mouse is extremely sensitive; near unusable. I'm assuming this is a mouse driver issue (using a wired Logitech G5). I am assuming this is some sort of mouse driver issue. I have tried messing with Pointer Acceleration in System Settings -> Input Devices - Mouse -> Advanced Tab, but it doesn't seem to affect the speed at all.

Perhaps if I restart my mouse driver the speed will go back to normal? If I reboot my system the speed returns to normal. I tried typing this in terminal, but the mouse speed remained hyper sensitive: "sudo systemctl restart display-manager". Could someone tell me how to restart the mouse driver?