Mad stuff.
I already use Plus1 HD for a decent match day stream and get films via torrents but in the last week ive installed CartoonHD, Showbox, now Mobdro and Football TV Live and its only Modbro I seem to have a buffering/lag problems with - on phone and tablet.
I've tried them all via Bluestacks on my laptop and Modbro and Football TV Live are even worse that way - yet Cartoon HD and Showbox are absolutley brilliant - HDMI to the TV and you're away.
Just a shame about the performance issues for Modbro.