The single most important fact you must understand about connecting flights is that THE AIRPORT IS NOT RESPONSIBLE for the connecting of your flights. The airline and/or airlines that you are flying with are responsible for getting you to Cancun on time to make your connecting flight. There is absolutely nothing that the airport can do to assist you with your connecting flights other than giving you the following recommendations:
Weekends are very busy at the airport, thus give yourself enough time between flights. Weekdays are not as bad but if you are flying in during peak hours (10:00AM to 4:00PM) then you may run into some long lines at the immigration and customs booths.
OFFICIAL - CANCUN AIRPORT TOP AIRPORT IN LATIN AMERICA & THE CARIBE
"ANNOUNCES TOTAL PASSENGER TRAFFIC FOR OCTOBER 2014 UP 15.8 % YEAR OVER YEAR"