After the new patch, my cities aren't growing

[gribol]

Hello

Since the new patch, my cities have been growing very slowly. Once the population reached around 20 (which was around turn 300 in the game, started before the patch), all growth stopped and has been very sluggish.
I don’t like this, because most of my enjoyment of the game comes from the economic development of my provinces and building new structures. In the current situation, this is very difficult due to the slow population growth.
Could it be that the new limits on population growth have been set too strictly?