Of course there are compromises for this performance in other areas.
Well of course there are. And our customers, the oil companies, aren't willing to make them. I don't know about Oz or the north sea, but in the US Gulf, they're only concerned about 2 things:
What's the most you can carry?
When is the latest you can depart?
We take off at max gross most every time, & it's often a struggle to hover, much less do a vertical or Cat A takeoff. We get right at the edge of the heliport, & if it's a 412, hold it steady at a 3' hover until it starts to rise a little, or if a 76, pull 100% TQ & 'ride the bubble' off the heliport, after having verified that we can at least hover. Having the luxury of excess power to do anything else is rare.