Kai Sa is not a good pick for the adc role

She does not do enough damage for the ADC role. I've seen tons of really skilled Kai'Sas, I'm not saying you're a bad Kai'Sa when I tell you she isn't a good ADC. I've won as Kai'Sa ADC and with Kai'Sa ADCs, everytime we do win they get extremely fed; However, when I did win as Kai'Sa adc, I wished I played someone else because if I had 16 kills on any other ADC, like Tristana, the game would be over. I don't really get it either, but she just does no damage. I personally think it's because she has a really hard time getting close to any champion with CC. That was my problem in my Kai'Sa game. She can get blow up so fast and she's attack speed based, so you can't blow them up in 3 autos. You need to not get cced at all to do damage. She's good at executing their back line and then running away. A good roaming mid lane pick, but at the same time mid has a lot of cc so idk