Hello,
I host a Gportal server and I only changed my rates setting through the in game Server Settings. Everything was ok until yesterday when I came back to play and it seemed like the rates changed, although nobody actually changed them, and the numbers were the same in the Server Settings list.
The stamina drain on dodge was greatly increased, I ran out of stamina after 3-4 dodges (there was no change in the attributes or armor or anything like that). The crafting time was much lower and another very noticeable thing was in the animal pen, the animals were eating sooo much slower. They used to eat 1 piece in less than a second, now is like 10 minutes 
And I need that precious gold and ichor.
I have noticed some similar posts on reddit I think and they said that everything got back to normal after some time, not for me though :(.
Any help will be very much appreciated!