Jhin's late game

As a PBE tester, I played Jhin a bit in PBE. I thought that he was pretty broken late game and I hoped that Riot would have balanced it a bit when they release him. However, lo and behold, they didn't. He still has the ability to get nearly 800 ad at full build. This, combined with a stun and a fourth shot thats guaranteed to crit, means that once Jhin gets his items, he doesn't even need to use all four shots because of his high crit chance from items. Even at only 2 or 3 crit/attack speed items and 1 dmg item, he can have at least a 50+ ad lead on the enemy adc. This means he can still be able to fight the enemy adc even if he's behind. I've seen games where a Jhin loses lane hard but still come back because of his passive and items. I think that Riot should at least nerf the percentage ratios a bit so his mid to late game doesn't become way too powerful to a point that nobody can 1v1 him.

*This is just my opinion. If you think he's balanced then I don't really care. I'm just saying this to point out something that I think is fairly overpowered and needs a fix. Feel free to add your own opinions in the comments.