I know that perusing Golden Age Comics for material is kind of like shooting fish in a barrel, but sometimes I can't help myself.
It's bad enough the Whizzer had that awful name (leading to "power of super urination" jokes for decades thereafter), but he wasn't exactly the most coordinated guy out there:
Keep in mind he's not exactly fighting Darkseid here. These are just ordinary hoods that anyone this side of Aqualad could have taken out with relative ease. I think the problem is he isn't very coordinated, and that's a real problem when your power is that you move really fast. Heck, maybe he did also have the power of super-urination. I have yet to read anything that says he didn't.
Oh, Whizzer. Your revival in the Bronze Age gives me hope that one day I'll see the return of Killjoy.
See you tomorrow!