Those numbers are just weird, for example the lower player gets more exp from leeching than the higher player does (in GMS it's the opposite - lower players get less % from leeching than higher player)
On the other hand it's also less exp. A level 133 doing no damage in GMS would get 38.8% off a kill, not 19.2%.
On the other hand it's also less exp. A level 133 doing no damage in GMS would get 38.8% off a kill, not 19.2%.