How to avoid lagging page's transistion

Seems that the first time i enter any page the page transition lag terribly on android (but using the slide transistion from ios).

I suspect that the reason is the initialization code of ionViewDidEnter() to be incompatible with smooth FPS on screen.

Is there a way to know when a transistion has completed? This way i can delay the initializaton code and just display a loading spinner meanwhile.