CX lounges in China are dreadful. It's an embarrassment for an airline that makes so much of its money from overpriced tickets to China that they can't even offer their premium customers a decent lounge. The Hainan and Skyteam lounges at PEK show it is possible even in China to have a half decent lounge.
For PEK if you hvae PP just head to the Air China First Class lounge. Less people and the food is as awful as the CX lounge.