HD live streams become choppy after few minutes

Hi

I have a problem where I can’t get my head around. I installed the latest kodi on my Samsung Galaxy s6 phone.
Whenever I play a HD live stream everything is fine and smooth , but after a minute or so the video becomes choppy and the audio is gone. With SD live streams I don’t have this problem.
I searched for a long time to find a solution. I tried to play with the video settings, hardware acceleration on/off etc. Nothing seems to work
I also have a MacBook Air with the exact same problem.
Both systems play 1080p videos, local and streams, just fine. But live streams are the problem.
Can someone point out what the problem can be or direct me to a link where this problem is tackled.
Thanks in advance.