I have an important question?
Why is party xp so low? It literally makes no sense for me to play with my friends while leveling up, because it will take me probably 5 times the mobs and time. Of course it should be lower, because mobs are getting killed faster, but I think its a bit too much. I would personally suggest to chnage it to around x5 or x6 to bring a bit more balance.
Hope you consider my suggestion.
Greets,
emm