There are good kicks in Kung Fu too cheesy.The kicks of this KO remember me to Bruce Lee. He used much doing the kick when the opponent is doing his kick too.
Hard to understand because your writing is a bit poor (maybe English is not your first language) but if you are saying Kung Fu kicks are too cheesy I'd suggest you are probably talking about performance Wushu and you've probably never even seen real Kung Fu. Furthermore you don't even specify what boxing system you are talking about, Kung Fu is a generic term similar to Karate in usage.
As for Bruce Lee, what he did in real life and what he did in films are two different things. Much of what he did in films was for dramatic effect, but I still probably wouldn't call them cheesy.