Really, why Flash doesn't kill OR knock out OR tie up Bad Guys in seconds?
- He can do it.
- He has A LOT of time.
- He can literally do anything with those poor bad guys.
This question not about supernatural abilities of Flash and Bad Guys. Yes, some of them are protected of being knocked out in a second. But others are not protected and cant react so quickly. They can do some damage only if Flash gives them time, and he gives it.
Why so long and complicated?.
Note: Here, The Flash = a superhero. This question is based only on TV show, but I think there is the same issue in comics.