What is the fastest attacking weapon in Bloodborne?

Excuse me, could you please enlighten me on the subject of the swiftest assaulting implement in the realm of Bloodborne? I find myself intrigued by the various tools of destruction available in this gothic horror-infused world, and I am particularly curious about which one reigns supreme in terms of speed and ferocity. I understand that each weapon boasts its own unique attributes and playstyles, but I am eager to know which one stands out as the fastest attacker among them all. Your insights would be greatly appreciated.