It's lag. Which is a huge problem in DS2 as the cross regional play option simply doesn't work. I guess for most people in EU and US it's not that big of a deal but when playing in Australia we are a tiny portion of the population and my experience has been that over half of all PVP I wound up engaging with was so laggy that is basically unplayable. Either for me or the other person, but it was simply not a reflection of the combat of the game, it was just about who happened to be hosting the fight would win.
Well I bought the asian version, but definitely lost a couple fights to lag but I wouldn't call it unplayable at all.
dark souls 1 pvp looked worse, I didnt actually play it myself tho.
The only thing in pvp that cheeses me off is LANCES. anyone else noticed these? they take "ghost reach" to a whole new level, and then a further level. I am 2 roll distances away from the tip and it hits me.