分割redux商店的性能优势？

我决定为每个组件创建一个单独的redux存储切片，还是为整个应用程序UI创建一个切片

备选案文1：

import { combineReducers } from 'redux';

import ButtonsReducer from './buttons';
import StoreItemsReducer from './storeItem';

export const rootReducer = combineReducers({
  buttons: ButtonsReducer,
  storeItems: StoreItemsReducer,
  /* and so on for each UI react component */
});

export default rootReducer;

备选案文2：

import { combineReducers } from 'redux';

import UIReducer from './UI';

export const rootReducer = combineReducers({
  UI: UIReducer,
});

export default rootReducer;

第二个选项更容易实现，但我很好奇，如果我继续为每个UI组件创建一个单独的缩减器/切片，是否会带来性能方面的好处