We now use the item height attribute to calculate a minimum amount of items to help stabilize the virtualization. In the project provided, it would be good to set `fixedItemHeight` to 30 (which is the minimum height of the items according to the makeItem callback implementation) to potentially reduce the number of items spawned, because the default is smaller than that. But it is expected that enough items of that minimum height are bound to fill the viewport when using DynamicHeight virtualization, they will then be recycled as users scroll.