One ref.watch and rebuild general screen vs multiple ref.watch on small sub-screen sections

[AndroidDesigner]

Hello everyone.
I have a ConsumerStatefulWidget screen (called A) consisting of multiple sub-views (ConsumerStatefulWidget or ConsumerWidget).
I'm getting a big json data from server every 1 second and saving it in a StateProvider.

I wanna update screen A each time a new json is received from the server.

So, which one is better?

1. listen to json StateProvider only in screen A and pass required data to sub-views?
2. listen to json StateProvider in sub-views directly?

is there any difference between two above solutions?