Ionic app takes too much time (3-4 minutes) to load on android nexus 5X


I am developing an Ionic app, It works fine in other android devices even on iPhone, but on it takes too much time to load on android nexus 5X.

This is the screens showing for like 3-4 minutes

Then This screen shows up,


What is the app doing during this time?

Did you remote debug the problem on the device already? Follow these instructions here to debug the problem in Chrome dev tools: Look at the console and network tabs for errors, or profile the app.