What bow wave?
Vessel approaches, I shoot a few bullets through the bridge window, vessel stops, I board and take command.
Pirates plot a course which brings them in front of the bow of the vessel, machine guns are pointed at the bridge and master is ordered to stop.
Its that simple, actually.
I understand container ships can be over 300m long. The bow wave is considerable and if you approach from ahead I am reliably informed you will soon be waving bye bye to those onboard since the range will close at the sum of both your speeds.
Better close from abeam that way you can judge relative speeds and it gives those onboard time to adjust to threats and perhsps slow down if they intend submitting to the pirates.
Also its easier to board from the side of the ship. The flare of the bow makes it almost impossible and the bow moves far more, pitching and swaying, than amidships where hard turns have little effect.
The big danger is the stern, if it swings towards the pirate skip it can be fatal.