Set to use-own-generator to avoid recalulation in position finder.

src/main/resources/config.yml

@@ -36,7 +36,7 @@ world:
   # Use your own world generator for this world.
   # In this case, the plugin will not generate anything.
   # /!\ This feature is experimental and might not work as expected or might not work at all.
-  use-own-generator: false
+  use-own-generator: true
   # Sea height (don't changes this mid-game unless you delete the world)
   # Minimum is 0, which means you are playing Skyblock!
   # If sea height is less than about 10, then players will drop right through it