thanks Ingo. you are probably right. we may need to recencode the MPEG-TS format to MP4 format for this to be valid test.
you could try remuxing it like this using ffmpeg
ffmpeg -i input.ts -acodec copy -vcodec copy out.mp4
The reason I'm asking if you can do it, is my ME may not stutter the same way, so I can't really test for improvements .
But what I'll do is revert 2 changes made and post 3 videosink files (revert 1, revert 2, revert both) to test the streaming.