title: Change Navigator.pop() animation duration with page_transition
body: <p>To have an animation while changing screens I am using the <code>page_transition: ^1.1.5</code><br></p>
  <p><strong>Here is an example:</strong></p>
  <pre><code>Navigator.push(context, PageTransition(type: PageTransitionType.rightToLeft, child: HandymanDocumentsOverview(), duration: Duration(milliseconds: 150)));
  </code></pre>
  <p>Yesterday I installed <code>firebase_core: ^0.5.0</code> and updated all other Firebase dependencies. And somehow it just feels like the animation speed for <code>Navigator.pop(context);</code> is way slower than before and doesn't even match the first animations speed.
  Does anyone know how to fix that?</p>
  <p>Edit here is my <code>flutter doctor -v</code></p>
  <pre><code>[✓] Flutter (Channel stable, 1.22.0, on Mac OS X 10.15.4 19E287, locale de-DE)
      • Flutter version 1.22.0 at /Users/bastianmeyer/flutter
      • Framework revision d408d302e2 (3 days ago), 2020-09-29 11:49:17 -0700
      • Engine revision 5babba6c4d
      • Dart version 2.10.0
  
   
  [✓] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
      • Android SDK at /Users/bastianmeyer/Library/Android/sdk
      • Platform android-29, build-tools 29.0.3
      • Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
      • Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b4-5784211)
      • All Android licenses accepted.
  
  [✓] Xcode - develop for iOS and macOS (Xcode 12.0)
      • Xcode at /Applications/Xcode.app/Contents/Developer
      • Xcode 12.0, Build version 12A7209
      • CocoaPods version 1.9.1
  
  [✓] Android Studio (version 3.6)
      • Android Studio at /Applications/Android Studio.app/Contents
      • Flutter plugin version 45.0.1
      • Dart plugin version 192.7761
      • Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b4-5784211)
  
  [✓] VS Code (version 1.49.2)
      • VS Code at /Applications/Visual Studio Code.app/Contents
      • Flutter extension version 3.15.0
  
  [✓] Connected device (1 available)
      • iPhone SE (2nd generation) (mobile) • FC1FC561-C5E6-4E13-AEE5-B5D9308C29B5 • ios • com.apple.CoreSimulator.SimRuntime.iOS-14-0 (simulator)
  </code></pre>