Is there a difference to importing specific functions/variables vs importing it entirely?

Question

When importing functions in for example, ReactJS, I normally import only specific functions.

import { useEffect, useState, /* ETC... */ } from 'react';

But is there a difference to just importing the whole module?

import React from 'react';

Except for the fact that you'll need to do React.useState() instead of useState(), is there a difference in performance? Does it load faster etc. I know it probably reads the entire file in both cases but is anything else affected?