Scrolling not fluently on Android when I use ScrollView.

I use Alloy framework and use ScrollView in view xml file like below:

<ScrollView id="scrollView" layout="vertical">
        <View class="tile"/>
        <View class="tile"/>
        ...
    </ScrollView>

It works well on iOS but can't scroll smoothly on Android. When my finger released from screen, the scroll effect stopped immediately.

Thanks for any help.