Unity UI system on IOS (Ipad/Phone) always so much slower than native.

Hi all, I've noticed almost all games that use Unity's UI system is noticably slower than similar controls natively on IOS. Usually anything animating like a scroll view. Yes I know there are pooling scroll views.etc out ther ebut it seems no matter what I cannot get the UI to be as smooth and responsive as native IOS apps. This isnt anything specific to my app, the majority of professional products on unity running on ipad all seem to have a general slower UI as compared to native IOS apps that are butter smooth. Is this just a fundamental issue with Unity or any workarounds?