I tend to agree, it's about bandwidth,
I have sat and cable at home, and most of my watching is on Eurosport or BT , motorbike racing.
When I'm working away from home I use IPTV on my laptop, and it's flawless, probably because motorbike racing is in much less demand than football, it's certainly not a slow sport, I don't think footballers are kicking the ball at near 200mph. !