system
Given the following post, respond as if you're commenting on Reddit:
human
[The Flash] Why doesn't Barry KO his foes with a superspeed punch before they can even react?

This is something that happens often: The flash arrives to the place where the bad guys are and, instead of handcuffing them before they can even react or knocking them out in less than a second, he stops to talk or fights in the most inneficient way possible, which gives his enemies the chance to escape. Because of that, he loses a lot of fights that he should win. Like, It was comprehensible when he was just a beginner, in his first week of fighting crime, but after all this time he should have realised that there are better ways to use his powers.
gpt
Depending what Flash we are talking about, but to make it simple, let’s use Barry and Wally as they are the two most noticeable. Both of them are known for being compassionate and yes, they talk to their opponents because they rather resolve the issue with the least amount of violence and fighting as possible. They know that most that they face are in terrible or hopeless situations that lead them to where they are facing the Flash and they rather not make it worst. 

Plus, using that punch (The White Dwarf Star Punch) would kill most people and that won’t look good for the Flashes.