I have a sub to Helix, they are ok, but do buffer during football matches usually, my sub is coming to an end so I thought I'd try a different provider. The provider I chose seems worse, channels looping, getting kicked out of channels, buffering, just terrible. One thing they mentioned was too many channels consuming device resources. I have an Nvidia Shield which is probably one of the most advanced performance android boxes out there, how much truth is there to this? surely perfect player loads one stream in at a time its not streaming 100s of channels at once, sounded like some made up crap to me.
Channel quantity doesn't make a difference, you can get a sub with 10 channels and they can all buffer, it's either your Internet or the provider.