Yasuo's wind wall rito

I typically main yas and have played against him many times so I can understand how broken his wall can be at times but everyone saying to nerf plz is just retarded I just think it needs some serious scrutiny and some minor changes, one revision I thought of was to make his wall have no cooldown but to rely on the building of his passive shield and when he uses his wall it would use up all of the passive shield he has and then you could also make the shield generate marginally slower and then have it scale up with the time of the game.