The Tankko Problem

I play a lot of ekko, not as much as I once did but hes my 2nd most played champ. Tank Ekko is too much, even after patch 6.11. And even though I once played tankko to climb, I see the burden he is now. I think I have a few ways to fix it though.

Passive- this is the biggest issue by far. I think the best way to fix this is to remove autos from it, I Know this will hurt his kit but I know how to fix that, I also think lowering the slow on it can help as well. Q- now with the passive being spells only I think they could make the Q work sorta like dravens ult (i.e. reclicking q brings it back early) this can kinda go with his lore about controlling time, being able to fast forward the timewinder. W- honestly with patch 6.11 I don't see it being to bad, with shorter stun. If riot wanted to push ap ekko more maybe change it to a .5 sec stun that scales ap (capping at like 2.25 or something). E- no real Issues (but to clarify the E auto would have to stack the third passive). R- no real issues.

I think the passive/Q changes would be the best way to deal with Tankko, As much as I love both styles of him I understand the unfun gameplay he brings as a tank. I've already started to move to AP just because I don't like what tankko has become. Please add thoughts or changes to my opinion on how to fix him, because I don't think 6.11 did enough.