Small touch area <ion-tabs> and side menu

Hi, I´ve been working on 2 apps on Ionic 2 and in both of them i´ve noticed that the touch area in tabs is reduced to text only and in the side menu button , to the icon.
So this makes the app feel not responding when you tap sometimes outside those touch areas.

How can we expand the are?

I´ve been testing on Galaxy s5 , Moto G, Nexus 4 and Sony Z3+. All android.

UPDATE: I added Crosswalk, despite all those phones ate 4.4+ and the app improved a lot