If no one (with the same type account then you) is complaining with that problems, the probability of being a problem in your side is almost 100%... And with that they can only try to help you fixing the problem in your computer if possible.
I'm watching now 2 cams at same without problems and when i change to other realms/cams have no problem at all about the buffering/lagging
If it works by some way (different browser) in your computer... normally it's a problem from your side.
Try to clean cookies or clean cache files of browser
But the amount of time they use the mobile to watch things for such many hours i guess the tv don't have that (or they don't know that is a possibility or how to do it)
I only know it now because i got a new tv with that and watch football from laptop through wi-fi )
About that i forgot to answer... If i'm not wrong, i saw him at the end of the first time seems to be removing a condom (don't know if full or not) but it was a 'surprise' because i didn't notice he putting one. The blankets and the cams positions didn't allow to watch if he had fake orgasm or 'true' orgasm.
But i guess they called a 'champ' because 20-30 minutes before that 3 rounds of sex and oral in the middles we was totally wasted at bathroom grabbing the toilet.. And it wasn't a soft dick like the other guy with lisa