I don't believe Potomac is as popular as some might think. Even during the big Monique/Candiace fight I thought the ratings were lacking. Potomac doesn't have many Star players we're 8 seasons in Karen should have done DWTS or something by now.
Candiace could be doing a lot more music related stuff on E!, presenting and performing at The Peoples Choice awards, vying for some promo on The Voice, etc.
A lot could be done to bring more attention and relevance to this show but these girls don't understand the game or their worth IMHO.