Sensor just stops tracking for like a half second kinda often even at 8000hz. I've also tried it plugged in and still the same problem. First one I got I had to return also because the dongle just didnt work, $150 mouse btw
Professional players also having the same problem on stage at the CS Major
https://www.youtube.com/clip/UgkxuqAZoOmuaCIxJ160EuiowyngihQXB6q4