Hello guys! I really like Ionic 2 - but I have some issues regarding performances. After installing Crosswalk is a bit better. That means that once I am inside the app it goes kind of smoothly. The real problem is the opening of the app. Testing on Android 4.4 it takes 22 seconds to open it. A…

Which version of ionic are you using? I have experienced a lot of improvement in boot time with the release candidates (currently 2.0.0-rc.3) compared to some of the older beta versions. For more information see: [image] Ionic 2 speed up boot time? ionic-v3 Boot time is s…

I have just upgraded to rc3. The opening time remains the same unfortunately.

Make sure on android, that you’re not seeing a blank splash screen. We thought we were having problems with boot up times for the app on Android versions, and it turned out it was the splash screen playing, but the splash had no content.

Thanks @bsampica . Very good hint! It may be that main if not the whole cause of the problem. By now I have reduced the opening time but it is still slow: around 17 seconds. If restored from background it opens it instantly. But I think I can manage to reduce it further. How do how manage to rem…

I have actually tried a blank app with rc3 and the opening time is 15 seconds on android 4

Hi I have the same problem now. My app was running properly with rc3 until I upgraded all of my packages including ionic-app-scripts, angular and typescript.

Same issue, the opening time is 15sec also on ios. It appeared since I upgraded to ionic rc4 with its related packages. Does anyone know the reason why?

You can try building with --prod It does work for me. See another post about the same issue. [image] RC4 seems slower to load the app ionic-v3 Hello. I’ve updated my app to use ionic v2 RC4 today, and when I’ve run the app on my Android device, the app’s loading time ha…

As of ionic-app-scripts version 0.0.47 , build commands does not use AoT ( Ahead of time compilation ) by default , you have to use --prod to build in production mode that uses AoT. You can see this mentioned in the ChangeLog It’s good to keep any eye for major changes when updating .

Ionic 2 - App opening really slow

Ionic Framework ionic-v3

chanphillip December 23, 2016, 6:06am 9

You can try building with --prod
It does work for me.

See another post about the same issue.

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Improve app loading performance ionic-v3	0	648	June 30, 2016
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Ionic 2 - App opening really slow

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