How to make a contacts app?

Hello,
thank you for framework7, it’s just Amazing!

I need some help in making a contacts app.
I want to use list index, but when I have many contacts in my list, opening a page from one of it becomes very slow.

So I tried virtual list, and the page opening is quite fast, but I can’t use list index.

Can anyone help or provide a tutorial?

Thank you :pray: