I have noticed while running the whole adventure category that sometimes the bosses emote long lines of dialogue and you just have to listen and wait, but sometimes they don't emote at all. The difference between having these emotes come up and not seems to make a big difference as to how long each fight takes in some cases, especially the prologue. I think that the emotes skip more often if I have stopped a previous run mid way through and reset, but I'm not certain. Was just wondering if anyone else has noticed this and has any idea why it happens?

If I recall correctly, sometimes they won't speak if you have fought that boss in the same game session. Its the same amount of time but the dialogue just doesn't okay @Spiritvice