As quinn, Quinn doesn’t have a duelling Ultimate R. This makes her weak post level 6 when it comes to all-ins.

She cannot fight straight 5v5. She will need to flank in team fights. If the enemy has vision or knows where she is, she will be unable to team fight properly and will be forced to split push.

You are a champion that is prone to all-in and CC. Mix that with the fact that Quinn is quite squishy, it can be challenging to deal with enemy teams that have a lot of CC. As quinn, Quinn doesn't have a duelling Ultimate R. This makes her low position level 6 when it comes to all in. She can't fight right 5v5. She will need to flank in team fights. If the enemy has the vision or knows where she is, she will be unable to fight team properly and will be forced to divide the thrust. You are a champion who is inclined to all-in and CC. Mix this with the fact that Quinn is squishy enough, it can be difficult to deal with enemy teams that have a lot of CC.