First you need to make sure you are rendering using OpenGL. If you need smooth scrolling on Android (or iOS) you will currently need to use a native view. There are two approaches to this - use native views within your JUCE app (not something I’ve done on Android, but seen it done on iOS), or wrap your JUCE component(s) in a native Android/iOS app, so you can have native lists and navigation.
If you want to try the second approach for Android I have a fork I’m working on which should help with that: Modifications to JUCE Android implementation