How to improve deviceready firing?

Hi everyone,

I’m working on an ionic 3.2.1 App. When i deploy my App on android Device, I get this log :
deviceready has not fired after 5 seconds.
Ionic Native: deviceready event fired after 7448 ms

Ouch… But no problem Google help me and I learn to use Lazy loading on ionic 3 to improve performance.
Thanks to this functionnality I get this kind of log :

deviceready has not fired after 5 seconds.
Ionic Native: deviceready event fired after 3448 ms

How it could be possible that i take less than 3.5 s and more than 5s ? Is it the same Event ? And how could I improve my App’s boot ?

Thanks for all

Are you building with the --prod flag?

I try with and without nothing matters