Live-TV stuttering after channel start/change

I have an annoying issue in Krypton PVR. Every time a TV-channel is started or changed, there is stuttering on video, until it suddenly syncs perfectly. This phase can last from couple of seconds to even 10 seconds. When the channel is “locked”, it will stay synced. Not a showstopper but as I said, surprisingly annoying. And this happens in every channel.

This issue is not present in Kodi 16.1, also WMC handles these situations perfectly. I have toggled pretty much every button in settings and interlacing options, no cure.

Debug log attached:

http://pastebin.com/rA7WkZVf

For example in this debug log the channel sync after starting, is gained in this time stamp:
1450.18:27:52.967 T:3948 DEBUG: CDVDClock::SetSpeedAdjust – adjusted:0.000000

Additionally in this debug log I also switched to a channel, which happens to use teletext subtitles. I´m aware of that there is not much development on that side to get them handled better in Kodi. But there is clear bug, which to my knowledge can be seen only in Windows. When a subtitle page is selected the black background behind subtitles is staying in whole screen as it should be shrinked to the size of the text. In practice the actual video cannot be seen. This functionality has worked on some previous Kodi-versions but I think that Jarvis introduced this first.

Only way, which I have found, to get it shrinked is to toggle the PlayerDebug-screen first on the screen and then toggle teletext on.