SpaceTiming

Leading the flop it's fine, but you should give up the turn when you don't improve as Oppo's range is extremely strong and looks like he is slow playing a lot of sets and AA - KK. In this type of hand you should be leading only with sets on the turn in order to take value from over pairs and straight draws !

I believe you should going for value most of the times when he checks on this river as the range that is going to pay you off is quite wide (KJ K10 AQ K9s) and sometimes JJ or TT. I don't really like to check back AK very often.