title: Dramatically slow Web UI testing on real iOS device
body: <p>We have set of mobile UI test for website written with Java, using Selenide, Cucumber, Chromedriver. All these test running fast on chrome browser emulator. Now I'm trying to run all my tests on real iOS device, using:</p>
  
  <pre><code>Appium 1.6.3;
  ios_webkit_debug_proxy 1.7.1 (Built with libimobiledevice v1.2.0, libplist v1.12);
  Xcode 8.2.1 (8C1002);
  WebDriverAgent;
  iPhone 5s (two real devices - iOS v9.2.1 and iOS v10.2.1);
  MacOS Sierra 10.12.3
  </code></pre>
  
  <p>Test successfully passes, but it is dramatically slow. For comparison, one small scenario take <strong>3 min 20 sec on real device, and 20 seconds on chrome emulator</strong>.</p>
  
  <p>Is it possible to optimize work of ios_webkit_debug_proxy, appium or WebDriverAgent? </p>
  
  <p>Looks like <em>ios_webkit_debug_proxy</em> makes some heap dumps during test run and this makes test slow. Am I correct? Is it possible to run tests against real iOS device without <em>ios_webkit_debug_proxy</em>?</p>
  
  <p>Please, help me with this.</p>