title: Docker Desktop - Filesharing notification about poor performance
body: <p>When my Docker containers start, I receive the following notification that reads:</p>
  <blockquote>
  <p>Docker Desktop has detected that you shared a Windows file into a WSL 2 container, which may perform poorly. Click here for more details.</p>
  </blockquote>
  <p><a href="https://i.stack.imgur.com/LzATI.png" rel="noreferrer"><img src="https://i.stack.imgur.com/LzATI.png" alt="enter image description here" /></a></p>
  <p>My questions are:</p>
  <ol>
  <li>What does this mean?</li>
  <li>What is the better practice / how should this be avoided?</li>
  <li>If the message has been closed, or I've clicked &quot;Don't show again&quot;, how can I get to the details of this warning?</li>
  </ol>
  <p>I am happy to share the Dockerfile or Docker-Compose setup if needed, but I simply cannot find anything either here on SO or by a Google search that points me in any direction, so I'm not sure where to start. I'm assuming the issue lies in the Dockerfile since that is where we running <code>COPY</code> to move some files around.</p>
  <p><strong>Docker Version</strong>: Docker Desktop 2.4.0.0 (48506) Community</p>
  <p><strong>Operating System</strong>: Windows 10 Pro (version 10.0.19041)</p>