This is another thing that the devs must have known before. Why didn't they make the XP system more like in MMOs? There you get more XP for big challenges and less XP for smaller challenges, thus adjusting everything nicely up or down. It is like adaptive difficulty, but done in a way that doesn't so directly and blatantly interfere in gameplay that it would make things look too equalized.



I'd have recommended the OP to raise difficulty when things become too easy due to overleveling, but if it's already on the highest difficulty, then that's crass.

I mean, you could use worse gear, but THAT would probably mess up the gameplay feeling.