Slow boot on android with --prod "enabled"

I made a relatively small app I built it with this command to make it an .aab at the same time ionic cordova build android --prod --release -- -- --packageType=bundle. It is 3.7 MB on Android, which also means that it shouldn’t take that long to load, and yet from cold start it takes 30 seconds to load the app. This is not a problem on iOS, only Android. Is there anything I can do to speed it up?