Slow play an AA it is not the best move, because you open the range of all the other players who will pay or check with connectors like 4-5, 6-7, and so... The first advantage that you had like 88% can drop significantly.
I think that you need to show that your hand is strong, so you will be paid by AK, for instance, where you will keep the 88% and more on turn and river.
The thing with strong
hands is that you need to be paid against other strong hands, for you to keep having the advantage. So, always be aggressive with AA, unless in very particular situations (where you have the reading of your opponents, and so... But starts aggressively then you can slow down on turn and river to gain the maximum of chips possible)