Virtual list + list index problem on iOS Cordova

I want to create a contacts list with list indexes and many items, but I have some problems with it.

Virtual list works well, but I wonder if there is a way to avoid the white page effect when scrolling fast up or down.

I also added list index and it works well with md theme on Android app and web browser, it also works well with iOS theme on safari mobile browser, but it’s doesn’t work well on iPhone app.

I couldn’t find any example of a contacts app made with framework7 on internet, can you please help me? Ps. I love framework7 :heart: