I've seen posters here mention reddit..is it better?
How are you using first row sports?
If you use google chrome, and use their ad blockers. It is much better. Downloaded the viewer, and used this service for a long time. Never had any issues.
Also you just need to get around the tricks of the few pops you do get after you use the ad blockers. Go to full screen mode. The broadcast, like everything else is as good as your broadband width.
All of their pop ups or most of them have faint grey X to close it out. What you think is the X to close often times is not. This is the biggest irritant on this site. But once you figure that out and use the ad blockers, it is decent. I found google chrome works better than any other browser. As of last year anyway.
This year I am back on Sunday ticket, plus being back home now, I get the local broadcast anyway.