I'm sorry for the harsh title. But this is exactly the sentence we throw around the office for quite some time now when ever somebody complains about the slowness of Apps based on Xamarin.Forms. Especially on Android the non-native layout cycle takes insanely long. We already created a minimal example to illustrate the issue: https://github.com/perpetual-mobile/XFormsPerformance, posted a question to StackOverflow http://stackoverflow.com/questions/26364509/why-is-xamarin-forms-so-slow-when-displaying-a-few-labels-especially-on-android and of course reported the bug to Xamarin: https://bugzilla.xamarin.com/show_bug.cgi?id=23822.
We are very surprised that this issue seems to have no attention. Are we the only developers which hold back releases because our "native App" is way slower than anything we could code in a WebView? Or has someone already found a workaround?