Picker freezes the application on large list item assigned

Hi,

I'm building a WPF integrated XamarinForms crossplatform application.

I've used Xamarin.forms.picker for dropdown/spinner.

I've assigned a large string list to picker.ItemsSource

While running XamarinFormsWPF application, when picker is clicked whole application freezes without displaying the dropdown.

But when I reduce the list size assigned to picker.ItemsSource to few ListItems it works properly.

The same works perfectly in XamarinFormsUWP with large lists.

Please suggest a solution or a workaround to make this work on XamarinFormsWPF .

-Thank You