React Redux. Connecting one main file to store or many? What is more productive?

Question

React

Question:
The application has a main file, App.js and many others.
1) Which is better, connect everything to it and send data to descendants through properties or context, and forbid extra render through shouldComponentUpdate(since all data will pass through this file, it will constantly call render ).
2) Connect only the necessary files, providing them with certain data directly via connect ?
What is more productive?

Answer 1

redux.js.org/docs/faq/ReactRedux.html#should-i-onl...