Personally, I still haven't tried trading on kucoin exchange because I'm satisfied with the service that Binance giving to me, so I can't say what are the things that kucoin are lacking. Being a new cryptocurrency exchange should not be a reason why the volume is low. If the service of that exchange is good, the system security is strong and website is always up then traders will come. And another thing, I'm not really sure but I think kucoin and binance both started last year, but if you will compare the current volume of this exchanges, it clearly say that are things that people don't like about that exchange. There's a lot of competition and a lot of incident of an exchange being hacked so people are now careful on what exchange they will trust.