High RAM usage!?

My app is still not finished. Right now it only receives push notifications and display them inside an app (max 50 items) and yet my app is using so much RAM. This is just crazy. Can I fix this somehow? Can I find out what the cause is??

EDIT #1

Here is App RAM Usage stats

It’s really open-ended, it could be caused by a number of things.

What plugin are you using?

ionic plugin ls

What version of the cordova-android platform are you using?

ionic platform ls

Plugins

cordova-plugin-console 1.0.4 "Console"
cordova-plugin-device 1.1.3 "Device"
cordova-plugin-splashscreen 4.0.0 "Splashscreen"
cordova-plugin-statusbar 2.2.0 "StatusBar"
cordova-plugin-whitelist 1.3.0 "Whitelist"
ionic-plugin-keyboard 2.2.1 "Keyboard"
onesignal-cordova-plugin 2.0.6 "OneSignal Push Notifications"

Platform:

Android 6.0.0

BTW. I’ve installed Ionic Conference App and realized that it uses more than 150MB when it runs. Then I installed this one http://blog.ionic.io/built-with-ionic-joule/ . Joule uses 277MB when running. I dont understand how people with 1GB phone (iphone 6 is 1gb too) are using this Joule app or anyone who has 1gb android phone!? I dont understand why all Ionic apps are this bad, basically they are unusable if you dont have at least 2GB phone.