Ionic version: (check one with "x")
[ ] 1.x
[ x] 2.x
I'm submitting a ... (check one with "x")
[x ] bug report
[ ] feature request
[ ] support request => Please do not submit support requests here, use one of these channels: https://forum.ionicframework.com/ or http://ionicworldwide.herokuapp.com/
Expected behavior:
Device READY should be FIRED within 5 secs
Current behavior:
A brand new ionic app RC 5 would take close to 8 sec to bootup. If u add fontawesome and our styles then the app boot time is around 16 secs. Tried both adding, removing plugins, adding and removing platforms..no use..the app takes like 16 sec to bootup.
Device READY FIRED AFTER 16549 ms

Did you try to run it with the --prod command?
This is related to build, and not running build with --prod, which was introduced in 0.0.47 of app-scripts.
https://github.com/driftyco/ionic-app-scripts/blob/master/CHANGELOG.md#0047-2016-12-12
That fixed it. Thank you.
--prod works for me too!
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Most helpful comment
Did you try to run it with the --prod command?