spawn density and rate

Hi, I have a question that i cannot seem to find an answer to.

I was wondering how to succesfully modify the spawn rate and density settings

for example, i have set
spawn.min_rate 2
spawn.max_rate 4
spawn.min_density 2
spawn.max_density 4

This produce alot of trees/boulders/barrels and resources tiles but very very few animals

How can we increase the animal respawn rate/density and/or is there any particular reason why the animals do not appear to be respawning after being consumed/killed

thanks !

Nobody have a idea ?

less players less spawns is the only think i can think of …is the server full or just a few