hey im currently lvling up some pokes and i just noticed that some pokemons are really slow to lvl up compared to others, charmander and sandile needed less xp to lvl up than bulbasaur, and the one im working on now are porygon and it takes forever for him to lvl up, he is lvl 74 and killing lvl 58-61, compared to charmander and sandile it only gains 40% xp of its xp bar meanwhile charmander and sandile gains almost 2 lvls in when they were in the same lvl as porygon. same with bulbasaur but it was much faster to lvl up compared to the porygon.