Form controls are lag to response to click action in Android smartphone

In Android smartphone device, the form controls are lag when I do clicking on them. Sometimes they even no work. But in android tablet and ios devices there is no this issue.

For example, I may click server times to open a combo box (I am using ion-select). Especially, when the cursor is focusing on an input field and the keyboard is showing, then I click a combo box, the combo box is lag to show.

I do test in Samsung Galaxy Note 4 (android 5.0.2), Samsung Galaxy Tab S (android 4.4.4) and iPad.

Cordova CLI: 6.5.0
Ionic Framework Version: 2.0.1
Ionic CLI Version: 2.2.1
Ionic App Lib Version: 2.2.0
Ionic App Scripts Version: 1.0.0
ios-deploy version: 1.9.1
ios-sim version: 5.0.13
OS: macOS Sierra
Node Version: v6.9.5
Xcode version: Xcode 8.2.1 Build version 8C1002

Anyone can answer this?