I remem in 2004 when I started playing NBA Live on PC competitively. It was all p2p connections. I can tell you a little under 100 ping was the only thing that was close to an offline environment. I beat people with wild pings (200 is a wild ping, that's like MO1 sweden from tx ping), but it's not even the same game. You don't even shoot jump shots because you can't time them. 300 ping is atrocious now, and it was in 2004. haha.
I would say the difference of ping isn't the issue as much as one ping being 70 and one ping being 150 (yea that's 80 ping, but it's a more rounded number,) If that makes sense. One is perfectly smooth, the other is not. There are people with 30 ping. If their ping was 30 and mine was 100, it would be doable. It would be less of a disadvantage than 70-80 v 150. There is a threshold of playability, like tiers. 150 ping is KINDA BAD. I ping 150~ thru task manager in MO. I can deal with it, but it kinda sucks. It's worlds different than the original MO server ping which was only a bit higher. 200-215, w/e.
300 ping on MO tho is like I'm sorry for you loss. lol I dunno if you could even play a beast master at that point.
Edit: but I'd take stable 100ping in any game
I can adjust. It requires foresight, but it's not a big deal.