Very high use of CPU on back button


I developed an app that is showing a list card with images and text. When I run it in my iPad, CPU usage is increased over 90% and crashes the app.

I’ve removed the ionicLoading. And CPU is considerably increased when I navigate back to the main view. CPU is correct at some point if I go from the main view to the second view, BUT when I go back to the main view CPU goes from 35% to 107% or more.

Why is this happening?

Thank you for your help

I ’ ve experimented same issue, but in my case the app crash. Any, suggestion??