payouts are only once every week or so... wtf is going on?

http://giro.expool.xyz/address/bCk95xzfqsgYNo8uxobkSA2muANsZKjoMh

is this normal?? it says 1343% roi on mnrank and i got 500 coins in 2 months, 20% roi in 1/6 of a year.