Vi is a problem that needs to be addressed.
vi is currently too uninteractive. you thought kha zix isolation was a problem made it hard to jungle against hm. well you have vi. the champion that gets two percent hp shields. armor pen and really high base damages for free. I really love trying to invade vi. and her getting some 200-300 hp shield in he fucking early game because her passive and cotc stack perfcetly. shes builds pure tank after 2 damage item. for an ad caster. I can't name any ad caster that does that . ad assassins build 4-5 damage items. vi builds 2. and is pretty much an ad assassin. make shields stack multiplicatively. she can shutdown any carry with her infinite cc. you can't really punish her that much she will cc lock anyone trying to solo carry a game for her team to focus. you can't really catch her out because shes very mobile with her Q.
currently sitting at 54% winrate. if shaco gets gutted at that kind of winrate. why can't vi at least get a small nerf. shes too opressive atm. please. 3 times shaco playrate
i'd rather invade a kha zix or a fuckin shaco than a vi that gets a 200 hp shield at level 3. so uninteractive.
if a high winrate and playrate isn't overperforming then idk what is. also her banrate is going up every patch. so you will have to do something sooner or later to bring her in line with other junglers because shes not currently.
a start would be to nerf her damage. she shouldn't be nuking anyone with 200 armor mr and 3k hp. why the hell do we have these tank building hecarim wanna be's in this game.