如何在WPF中懒洋洋地创建UI元素？

We are creating a WPF application which makes heavy use of highly decorated input elements. A simple example of decorated element is a TextBox which looks like a read-only TextBlock when it doesn't have focus, and turns into a TextBox after receiving focus. Also, additional visual feedback is provided when the changed value is being saved to database. The problem is that showing a view that contains lots of these elements (let's say 100) is very slow and makes application very unresponsive.We are creating a WPF application which makes h