I absolutely despise superheroes whose ability is super speed, for one simple reason, that being that super speed is one of the most blatantly overpowered abilities in fiction, and because of this, leads to massive gaping plot holes as writers fail to fully utilise this power. Let's take the recent example of Quicksilver from the X-Men films. This character f*cking breaks the plot. He's been shown to move so fast that he can take out a whole room full of guards in the time it takes those guards' bullets to travel across the room. He can also notice an explosion going off under a mansion, dash in and save every single person in there. While this can lead to some pretty clever and visually interesting scenes, it destroys any sense of tension and difficulty. Think about it, if you can move that fast, literally nothing poses a threat to you. You'll win every single fight due to your extreme reaction time. Someone throws a punch? Dodge it. Someone pulls a gun on you? Take the gun out of their hand, replace it with a banana. You step on a land mine? The moment you notice the mechanism activating, you move out of the way, grab a spade, dig up the land mine and throw it at a bad guy. But no, in films the speedster never actually uses their power when it matters, and end up being beaten in contrived ways like being ambushed. Newsflash, you can't ambush someone whose reactions and movements are faster than a bullet. It should be that the moment something is perceived, it can be avoided. Literally the only feasible way to take out a speedster is to do so while they're unconscious, and even then, if their senses can perceive things super fast, they'll probably just wake up the moment you pull the trigger. Speedsters are stupid.