killaura isn't that reliable on hypixel I just use autoclicker and aimassist + reach 100% stay under 4 blocks for leaderboards though, unless you're TheEncyclopedia and love 4 blocking people and getting wiped
Killaura used to be very reliable a few months back if you knew how to toggle it at the right time, but that's not the case anymore because of the hit reg change. It's better to just use Autoclicker and Aimassist now, but yeah it was never smart to use KA if you were going for leaderboards, I only went for gold/diamond so I didn't care