Why does Adsense pay so little?

Question

contextual advertising

I have a small site with an average traffic of 30-40 thousand uniques per month, I recently installed Google ADsens.
After several months of work, I looked at the results:
Page views: 213 650
Impressions: 390 149
Clicks: 1650
Revenue per thousand impressions: $ 0.23
Revenue: $ 90
It seems to me that 0.05 per click is too little, the theme of the site is mixed martial arts. In Adsens, at the beginning I also added a filter of cheap companies (found from the Internet).
I want to ask the specialists if the amount of earnings is adequate or something is wrong?

Answer 1

depends on the audience, if for the CIS - all rates have fallen, they are taken from the CIS advertisers, but with the rate you can see for yourself that
, and of course, look at the "cheap" ones from the subject
with this layout, all sorts of ask.com can be the same 3-5 give cents, so maybe get more clicks