MacOs Sierra and usb Mice bug

so. i was told by a rioter that i can safely update to mac os sierra and that if i use alpha client i wont feel any issues

however, this was a lie. im STILL having issues. wheN IN GAME LIKE ON THE RIFT, my logitech g900 mouse keeps on going all over hte place for the smallest movements. on top of that, my the mouse is behaving like im waving it like crazy to locate (as per the built in function of mac)

this makes the game 100% UNPLAYABLE. when is riot going to patch the client to make it playable for mac users who have gaming peripherals? this is gonna make it impossible to enjoy my upcoming christmas break as i dont want to rollback to el capitan unless i absolutely have no choice.

please riot. help me out fix this for myself and many other mac users who want to move onto sierra. sierra has been out since september and it is now november. i know im not the only mac user with this bug as many others have reported this issue on the boards