buffering and lagging streams

Hi There,

I am having huge trouble getting to work with Kodi 16.1 or Kodi 17 (almost all versions) with simple iptv and HD 1080p live streams.
And also with some downloaded standard 1080p download streams (not live)

How is this possible? Tried almost everything but it’s not working.
Tried with and without codecs on (tried 5.1 and 4.4 android box) tried wired and wireless connection.

Adjusted Router settings. Adjusted advancedsettings cache settings (i know kodi17 has differtent tags) doesnt seem to work at all.

And strange thing is that MX player can play these streams without any problem?! What is wrong with the video player from kodi?

Any developer team member know these issues?

Also for a desperate action tried to use external player tag but even that is not working Sad