remove covariant out on IElementConfiguration (#5449) closes #5235

diff --git a/Xamarin.Forms.Core/IElementConfiguration.cs b/Xamarin.Forms.Core/IElementConfiguration.cs
index 2086fba..ed2868b 100644 (file)
--- a/Xamarin.Forms.Core/IElementConfiguration.cs
+++ b/Xamarin.Forms.Core/IElementConfiguration.cs
@@ -1,7 +1,8 @@
 
 namespace Xamarin.Forms
 {
-       public interface IElementConfiguration<out TElement> where TElement : Element
+       // Don't make this generic covariant as it causes UWP performance to tank
+       public interface IElementConfiguration<TElement> where TElement : Element
        {
                IPlatformElementConfiguration<T, TElement> On<T>() where T : IConfigPlatform;
        }