[2020] A silent update? Something has changed (Money/Credit Income related)

So a week or so ago I had a game running with the following stats..

200k credit income per tick.
100k people.

Since then i've found it more harder to create an income close to that! (About 4 other games started with same problem).

Right now I have a game going with these stats..
1.5k credit income per tick.
25k people

Even by those numbers it should be close to 50k credit income.. not 1.5k.

Same game settings. (Campaign custom game).
Same city setups.

Anyone else noticed any difference like this?