razer viper 8khz mouse

Tacking on my own submission to this one due to same issue.

Product: Apex Legends
Platform: PC
Please specify your platform model. PC
AMD or Nvidia Model Number. AMD 5600x and AMD 6800 XT Auros
Enter RAM memory size in GB. 32GB
What is your gamertag/PSN ID/EA Account name? Denmer
Are you using any software with an overlay? No. Everything is disabled, including Origin overlay.
Which Legend were you playing (if applicable)? N/A
Which Legends were your squad mates using (if applicable)? N/A
Where did the issue occur? Occurs throughout the whole game. In game, in main screen.
Which part of the map or menu were you in? N/A
What were you doing when the issue occurred? Issue occurs simply moving the mouse while running at 8khz polling rate. 
Did your squad mates also experience the issue? N/A
How many matches had you played in a row before the issue occurred? Happens immediately upon switching to a 8khz mouse.
How often does the bug occur? Whenever you move the mouse.
How severe is your issue? Makes game near unplayable.
What happens when the bug occurs? Moving the Razer Viper 8khz in any section of the game causes FPS drop/stall. Highest I can remember seeing is 96ms frame response time. Issue has been reported on other sites. No one seems to know what causes it. Some say they were able to fix the issue by disabling Origin Overlay or playing through Steam instead(haven't tried that one) but the rest still have issues. The only other option people having issues really have at the moment is to drop the polling rate to 4khz. I think someone mentioned this issue also being caused by the anti-cheat program in another game. Don't know if that is the case here.
What should be happening instead? Move the mouse without massive frame drops/stalls.
Steps: How can we find the bug ourselves? Use a 8khz mouse in Apex. Move mouse in any screen with objects in motion and you should see FPS stalls, more noticeable with repeated rapid mouse movement. Drop polling rate from 8khz to 4khz in Razer Synapse, problem vanishes.