Should Slaves only have Blizzard default addons?

Any addons I should shy away from or that conflict with backbone addons like Pitbull?

Addons impair graphical performance somewhat. Are slaves best left to blizzard default ui because of this? I loaded my boxing group to another computer and forgot to load the addons. I noticed thhe slaves follow alot more fluidly and the master to server to slave lag is 3 to 4 times better. I've watched a few boxing videos. One of the things that took me aback was that they dont use Dominoes or Pitbull.

Your two cents please.

I love the power addons give. They make certain information easier to take in. They made tedious tasks easy. So i realy dont want to give them up, Especially on the Master/Lead toon.