Lee Sin needs a buff

Hi there, Gold 3 Jungle main here. Here be my thoughts on Lee, please read it all before criticizing.

Lee Sin is reknown for his high mobility high damage early game. He got hit very hard when Riot nerfed him over and over. He had his passive buffed as compensation, but the attack speed buff for his passive isn't of much use given how useless Lee is lategame. When he was nerfed and got the duration of his shield increased, i was fine with the nerf, as Lee is way too mobile and dominant early. However, when Riot nerfed his cripple attack speed slow, it was way too much for me and a lot of other Lee Sin mains. There are quite a few problems arise after the nerf.

1st: Lee Sin is bad in the lategame, only barely useful when pulling off Insec kicks on enemy high priority targets into own team, which is VERY hard to do given how easy it is to flash away from Lee or to get stopped mid way. He is no doubt one of the worst late game champions and is a heavy burden on the team if the game drags on past 30 minutes. Nerfing his attack speed slow leaves his with almost 0 utility late game but a minor damage dealing nuisance to the enemy team. 2nd: He his known for his high skill cap, a high risk high reward champion. But this is also a very BIG early game nerf to him. He has lost quite a lot of his dueling power and without the slow he can barely farm anymore buffs other than the first blue and red without having his health lowered below half. He might be very efficient at ganking, but unlike malphite vi ww his ganks can be avoided with relative ease. Once he gets behind, he is never going to catch up, nothing but a sandbag for the entire team. He has no hard cc but his ult, and removing his attack speed slow is a very hard hitting to late-game Lee as well as his early game. Now he is a high risk, medium reward jungler, and if the enemy team split-pushes and stalls for late-game. Lee's team might as well go 4v5. Easily reflecting how hard the nerf was is to check his win rate in ranked solo-queue in the past week or month. He is one of champions with lowest win rates along with Yasuo, Elise and so. I would love to hear how you guys think of the nerfs to Lee, whether he is now OP, Balanced or UP. Thanls :)