The quoted speeds of warships and actual speeds bare little in common. T45 was quoted at 28kts but made almost 32 on trials. You can draw your own comclusions from that. CVF has a surplus of power to drive her propulsion machinery at full tilt even with cats operating. I had the experience. of being on the Queen Mary 2 at levers 100 making over 30kts being overtaken by another ship.