1. Raise more preflop. On stars facing a 3bet preflop he has KK+ imo most often, but some players have opened up and start 3-betting QQ/AK preflop here. Id stack off preflop, fuck the results.
2. Id check behind on the flop, what exactly is going to hit the turn that scares us? We are either well behind or very much ahead so betting achieves not much imo unless opp is bad. We also arent looking to play a huge pot here, we want to showdown rather than get all in. Looking at the board and the miniraise preflop A9 or A5 wouldnt be surprising.
Call river as played.
3. I hate this spot. Id probably call the flop miniraise and fold the turn when the obvious draw hits. Im not sure how much i like 3betting here, but if its a fish who has shown he'll do this with a FD then yeah, shove.