Sure I can lower the difficulty, but at that point the rest of dungeon would become way too easy and boring.... and I think many people too hate it to be constantly changing the difficulty... that's not how it's meant to be played with difficulty. You should either make the bosses weaker compared to the rest of the enemies so we can play on on Master, or make the enemies stronger so we can play on expert or adept.
So please fix it.. it doesn't look like to much effort to me...