High level Pokemons are dropping little exp.

[Topstuartfmf]

Hello, my English is not so good, so I apologize in advance if I write something wrong... (I'm using google translator).
I don't know if it's a glitch but... Pokemons Level 30 - 50 are only dropping 500 exp and weaker pokemons are only dropping 70 - 110 exp.
Can someone help me? I don't know what to do or if I did something wrong.
(Reminder: I didn't play for a few weeks because I was busy)

I'm not able to take a print because my computer is not so good, sorry...

[Olker]

The exp pool every mon needs is way lower now, so wild mons also give lower xp.