Untainted Paradise not giving shown xp

Untainted paradise will show "400% increased xp" on the map node but when you open the map its giving 170% when you hit tab. Not sure if this is a bug or an unexplained mechanic but it makes untainted paradise feel awful since it already has a low mob density and makes it not worth even running.

Same here, shows on atlas 477% exp, and in map only 223% increased experience -.-