You will want to make sure that you turn off “JS Dev Mode ,” or else it will run painfully slow on device. This is how you disable JS Dev Mode on Android: After running “react-native run-android” you should “shake” your device to bring up the menu. Select “Dev Settings” then uncheck “JS Dev Mode.”
Read moreHow do you increase performance in React Native?
To optimize the application size of a react native application, you should:
Read moreHow can I make my React Native app faster?
Improve Start-up Time
Read moreCan I use Firebase with Expo?
Usage with Expo If you’d like to use Firebase in the Expo Go app with the managed workflow, we’d recommend using the Firebase JS SDK . It supports Authentication, Firestore & Realtime databases, Storage, and Functions on React Native.
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