title: Better performance when importing just a part of a library?
body: <p>Is for example this </p>
  
  <pre><code>using SportsStore.Domain.Entities;
  </code></pre>
  
  <p>better than this</p>
  
  <pre><code>using SportsStore;
  </code></pre>
  
  <p>?</p>
  
  <p>If that is the case, what does it mean for the performance of my program when I import bigger libraries?</p>
  
  <p>Edit: I mean, I get that it is pointless to import stuff I don´t use, but is there any actual harm in doing so?</p>