Omen reactor polling rate issue

[SmithOCE]

hey so i have an omen reactor mouse which i really want to use but each time i use it, i play fortnite and use both side buttons very often, the polling rate on the mouse in the software just sits at 125 and i cant slide the thing across to 1000 because the new software. it used to be able to be slid across in the old software but never sat at 1000 hz when playing fortnite, for a while ive just been using the razer deathadder because my game is so smooth with 1000hz on a mouse, but i cant stop the mouse from sitting at 125hz, if theres no solution, i might aswell sell it because i wont have any use for it