title: Room running very slow
body: <p>I'm trying to get/store data using the Room Persistence Library. The calls to get all data from a table is really slow, and I timed it using <code>nanoTime</code> to be about 1800ms, which I think is too slow. What could be going wrong?</p>
  
  <p>Here's some more info:</p>
  
  <ol>
  <li>There are just 20-30 entries in the table.</li>
  <li>20 fields, some serialized by Gson. Gson is not the bottleneck (says <code>nanoTime</code>)</li>
  <li>Test device runs 6.0 (Xperia M5)</li>
  <li>Room v1.1.1</li>
  <li>Queries are running using <code>AsyncTask</code></li>
  </ol>
  
  <p>The query is defined in DbDao as</p>
  
  <pre><code>@Query("SELECT * FROM events")
  List&lt;Event&gt; getAllEvents();
  </code></pre>