Many UIVIews + Quick Look = very slow dismiss

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C

Objective-C

iOS

Xamarin

I am building a calendar control. It generally works well and is responsive, despite using **hundreds** of UIViews (each cell in the example image is a UIView).

<img src="http://i.stack.imgur.com/6g1hQ.png" width="600"/>

I have run into a problem in which the calendar is put in an app. It is fully obscured by some other controls and finally by a Quick Look viewcontroller. **When the Quick Look is dismissed** it takes a long time (10 seconds) before the app appears to respond.

* Any view other than Quick Look has no slowness symptoms

Any help would be appreciated.