Here, I built an empty block in the slime block (which I have already confirmed) to obtain slime balls, but it seems that the server is slow to spawn any slimes (about one every half hour).
I am playing on a PaperMC 1.20.1 server with 9 players online at the same time.
Here's my paper_world_defaults.yml: https://paste.gg/p/anonymous/249a5c4bf70a4398b4160ac7bb48224c
Could anyone help me fix the problem? Thanks!