How is Caitlyn doing right now?

I main and until now I haven't seen anything that puts her in a bad spot.

Her early game isn't impressive but mid to late game I can literally one shot people with a crit build. Her Q isn't exactly that useful in teamfights but my god do those trap headshots force a lot of people to back off from teamfights due to the insane damage they deal. Her E is a nice hop over the wall, slow/free headshot and good for chasing low health champions. Her scaling is massive and with rapid firecannon/shiv/IE combo you might as well call her an assassin. Her ult isn't that bad, taking off far low health targets and occasionally seeing some try to flash from it as they panic xD

Early game you just have to focus on farming and avoiding deaths from ganks. Early game you don't deal very high damage compared to other adc's so you'd hardly get kills early but after you buy IE, statik shiv and boots you can deal a ton of damage. Buying rapid firecannon helps a lot with the quick charge and extra damage. After those 4 items, you don't even need the ult to kill people.

Overall I find her very useful in quickly taking down objectives thanks to the free damage from headshots that work in practically everything now. Traps cause enemies to make positioning mistakes more often and those who step on it will instantly regret it.

With all this in mind, there is something I don't understand: Why does Caitlyn have such low winrate in higher elo? She almost counters no one statistically and her winrate is less than 50% against any champion, except Lucian.