Especially with a highly anticipated fight, how does everyone handle buffering issue?

I just tried Setvnow on their 3 day trial, and it's great, but not flawless. I tried using a MacBook Air, and it runs fine, when I do air play, it definitely lags.

Then I tried my pc laptop and had it connected via a hdmi cable, and I can say it's better, but not reliable to know if it will be enough for the fight.

Btw I am using wifi, no direct plug in.

Has anyone had similar experiences?

Ps I don't think Setvnow is allowing free trial user to view the fight unless they are a paying customer ($20 per month)