Yes, interesting and unique idea. If bought via Google Play subscription can be canceled not to charge you more in the future, but no paused. I had the same situation for about 6 months while using Windows Phone and now when back to Android my AMS Premium is almost expired.
Antonio, have you tried our latest (completely brand new) AMS 5 Beta? It’s much more less resource consuming… Just tap on Google Play testing link, confirm beta test and then Google Play should offer update to latest Beta in a few hours…