Qt6 Multimedia - Subtitle Track Switch is Slow for Remote Video Files

Kit: Android Qt 6.2.0 Clang armeabi-v7a

Video Source: https://bhaart.s3.ap-south-1.amazonaws.com/sri_ramachandra_kripalu.mkv

Goal: The above video contains multiple subtitle tracks.   I want the user to be able to switch among the various subtitle tracks available, while the video is playing. I used the below code snippet for testing.

Window {
    ...
    MediaPlayer { 
        id: mediaPlayer 
        ... 
    }
    VideoOutput { 
        id: videoOutput 
        anchors.fill: parent
        TapHandler { 
            property int curTrack: -1
            onSingleTapped: { 
                mediaPlayer.activeSubtitleTrack = ++curTrack
            } 
        } 
    }
}

Observations: 

 The subtitle track switch for a local media (on my phone) worked very well. The subtitle promptly changes to the new track for the 'next' timed text.  

 The user experience for the subtitle track switch for a remote media (e.g. https://bhaart.s3.ap-south-1.amazonaws.com/sri_ramachandra_kripalu.mkv) was not good. After performing the track switch, it takes over 30 seconds for the subtitles from the new track to appear. And if we switch the subtitle track multiple times then the results are very inconsistent. The subtitles sometimes never appeared even until the end of the 5 min video.