Change Navigator.pop() animation duration with page_transition - flutter

Question

To have an animation while changing screens I am using the page_transition: ^1.1.5
Here is an example:
Navigator.push(context, PageTransition(type: PageTransitionType.rightToLeft, child: HandymanDocumentsOverview(), duration: Duration(milliseconds: 150)));
Yesterday I installed firebase_core: ^0.5.0 and updated all other Firebase dependencies. And somehow it just feels like the animation speed for Navigator.pop(context); is way slower than before and doesn't even match the first animations speed.
Does anyone know how to fix that?
Edit here is my flutter doctor -v
[✓] 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)

Answer 1

The package you are using is not yet updated to set the reverseTransitionDuration which was added to flutter recently.
You can upvote this issue to bring attention to it.

Answer 2

UPDATE: Should be no longer an issue with version 1.1.7+3.

Answer 3

Here's one way of specifying the forward and reverse durations:
Navigator.of(context).push(
PageRouteBuilder(
transitionDuration: Duration(milliseconds: 800), // Forward Duration
reverseTransitionDuration: Duration(milliseconds: 800), // Reverse Duration
pageBuilder: (BuildContext context,
Animation<double> animation,
Animation<double> secondaryAnimation) {
return NewScreen();
},
transitionsBuilder: (BuildContext context,
Animation<double> animation,
Animation<double> secondaryAnimation,
Widget child) {
return FadeTransition(
opacity: animation,
child: child,
);
},
),
);