LookupEditor Async in MVC version

[teafmartins]

Hello
I'm using the MVC version of Serenity. The project in question is large and loads a lot of data into the filters (quickfilter), making the page load slowly.
Is it possible to have an async lookupeditor?
Something like Core version:
[LookupEditor(typeof(MyRow), Async = true)]
Has anyone ever needed anything like this?

Thanks