ScrollView Vs FlatList

https://reactnative.dev/docs/scrollview
https://reactnative.dev/docs/flatlist

공식문서~

1. scrollview는 한번에 모든 data rendering
   so this has a performance downside.
   data가 많으면 존나게 느려질수가 있음.
2. FlatList는 화면에 나타날 것 만 rendering=> Lazy rendering