A little explainer on cavitation:
https://dienerprecisionpumps.com/pum...w-to-avoid-it/
I believe our oil pumps are rotary positive displacement pumps. Again, it will crop up IF you don't have adequate oil supply and thus make the pump have to suck harder to draw up oil.
Remember that in order for cavitation to occur, the fluid in question has to flash vaporize due to the pressure it is being exposed to in effect lowers its boiling point. Thus it flashes into vapor creating a pocket of gas. Then you expose it back to high pressure and your force the bubble to collapse thus creating a shock wave. If we were having cavitation, you'd be wrecking the oil pump pretty damn quick.
I'm not saying cavitation isn't happening, I am saying we're looking at a symptom and not the cause.
The answer is lack of oil accessible to the pickup based on the data we've been shown so far.