InterstitialAd.waitForDismiss() it works for a very long time

[zikwall]

There are two screens in app, it works fast on one, it works very slowly on other, although code of screens is completely identical and calls same functions.

Future<InterstitialAd> _createInterstitialAd() {
  return InterstitialAd.create(
    adUnitId: interstitialAd,
  );
}

Future<bool> _showInterstitialAd() async {
  var adRequest = const AdRequest();
  final ad = await _createInterstitialAd();
  await ad.load(adRequest: adRequest);
  await ad.show();
  await ad.waitForDismiss();
  return true;
}

// call

await _showInterstitialAd();

we have to choose other ways, for example:

Future<bool> _showInterstitialAd() async {
    final ad = await _createInterstitialAd();
    await ad.load(adRequest: adRequest);
    await ad.show();

    // change begin
    await Future.any([
      ad.waitForDismiss(),
      Future.delayed(const Duration(milliseconds: 100))
    ]);
    // change end

    return true;
}

$ flutter doctor -v

[√] Flutter (Channel stable, 3.3.10, on Microsoft Windows [Version 10.0.19044.2364], locale ru-RU)
    • Flutter version 3.3.10 on channel stable at D:\Dart\FlutterSDK\flutter
    • Upstream repository git@github.com:flutter/flutter.git
    • Framework revision 135454af32 (3 weeks ago), 2022-12-15 07:36:55 -0800
    • Engine revision 3316dd8728
    • Dart version 2.18.6
    • DevTools version 2.15.0

...

[√] HTTP Host Availability
    • All required HTTP hosts are available