title: threaded=True not working on Flask server
body: <p>I have an Apache server running Flask. The Flask application in called more than a thousand times per minute, which causes delays because it is run single-threaded.</p>
  
  <p>I have seen that adding "threaded=True" like this is supposed to help:</p>
  
  <pre><code>app.run(threaded=True)
  </code></pre>
  
  <p>But it is not helping. Is there a particular other server setting that needs to be changed to allow Flask to run multiple operations as once, rather having to wait for each page to finish before it can start on the next one?</p>