Barb villas wont grow?

Ive played quite some worlds but ive never experienced barbs growing so slow. first i thought it was just around me but then i saw province hohnheim 506/495.
in this province there are 10 villas of 1k+ and around 10 villas of 300-900 points. and the barbs here are all below 200 points like wtf?

these mechanics are completely differend from other worlds. i think the mechanics are broken


probably over farming, I know barbs need resources to grow just like we do, but about every time I hit one I come up dry


I believed, they grow based on an average of player growth in provincece, and since the 51 pointers aren't barbs yet, they drag the average down.