So, my uncle has been having this lag issue for the longest time. His mouse, and really, the system will freeze every 2 seconds. Not kidding, it would drive me nuts. Two seconds it works, one second, or a fraction of, it freezes. Even watching YouTube videos, it's freezes every two seconds.
Finally, I took a look at his laptop and tried a few things. Today, I installed the Windows 10 64 bit driver/software that I found on the support page (radeon-software-adrenalin-2020-21.5.2-win10-64bit-legacyasics-june21-legacy).
The program ran, said it would set the graphics back to factory settings (or something like that) and at some point during the process the mouse and laptop instantly began working as it should. I was thrilled. When it finished, it said the laptop had to restart. The laptop restarted, after some updates, and the mouse continued to work great. When I logged in, the AMD software ran another 5 minutes. I can't remember if just started or I clicked start. But it ran five minutes, and boom, the lag was back. Better, it does it only every 3 seconds now, lol. So, any suggestions on what I should try?