long story
- The quality choice is an extra. You can choose a lower quality if you haven't got a fast internetconnection
- That it plays in IE10 is not what I meant, I meant it doesn't play in xbmc, so I cant use their code.
- Onet.tv will be removed
I did try to improve playback, however @MacGyverek's vpn just quit on me, so I can't do further testing.
I updated the plugin, hopefully it works. If not (please post onlinevideos.log, in debug mode). If it does, can you check if quality 0 is low, 1 is medium, and 2 is high? Or is it the other way around?