There is no reason to rush the carrier program period. The very existence of a Chinese carrier program is proof that China is not planning for a serious conflict with the United States. Carriers do not fit in the defensive anti-intervention Chinese strategy. If the United States gets serious with the dangerous AirSea Battle doctrine, then China needs to seriously prepare for conflict, which would mean a decreased priority for the carrier program.
But that doesn't mean China won't move to CVN without constructing several large conventional carriers first. Nuclear propulsion simply makes too much sense for carriers and there is no good reason for China not to move in that direction.
At the same time, China are concurrently running a ASBM and heavily upgrading second artillery corps. China has the cash now. She is spending up what was neglected in the past. I think she is preparing for conflict with USA while at the same time preparing for more roles she will take in future times of international affair with her CV fleet.