In answer to the question in topic - since you grew old?
Unless you're 16 and have the reflexes of a cobra and the perserverance of Chuck Norris. Have you played the same P.D. table 20 times in one night yet? Then you are not like a 16yo. That's what I'm saying. I'm not. And that's why I don't get 100+million in score on Stones'n'Bones anymore
That said, P.D. is known for requiring input with zero delay, and therefore you should play it on a real Amiga, nothing else will do. It's particular.