For a list of 20-60 equally sized row with the same layout, that's sandwiched between text and other controls, and where the number of rows won't change. Would you use a ListView with a DataTemplate or a CollectionView with a DataTemplate, and if one or the other, then why?

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I think i will pick CollectionView because of the interesting ItemSizingStrategy property you can set it to MeasureAllItem which will make your CollectionView measure every item then display it while the user scrolls, or the other choice MeasureFirstItem which will measure the first item and apply it's size on all items in the CollectionView and that what you want i think. This made a noticeable difference in the performance when the user scrolls. But many developers reported issues that still exist currently in the CollectionView, you can check them out on the Xamarin Forms repo Please note that images loading may slow down the scrolling, if this was a problem for you then you can use gildex Nuget package to speed up images loading.

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