The bosses don't age as well. I also could be that we've gotten better. Sif gave me hard time my first play through. I destroyed it this time around.
I think it's that later Souls games had deeper move pools, so you adjust accordingly. Coming back to Dark Souls 1, it's easier to adjust.
Well yes, later games made the bosses more agile and dinamic due the increased combat speed, Bloodborne feels more arcade ish compared to DS1