Do you prefer to reduce WLTQD to 3 turns or something like that? I'd say it's simply easier to let China shine in Ancient, and let her decay in Industrial.
That or turn their cultural decay from 25% to 40%, something like that. Or weaken the paper makers bonuses. There are lot of bonuses China gets that can be toned down. I think that’s a better approach than taking out one of their mechanics entirely.