I have a player that reported the following issue:

"theres a huge population of zombies that appear by launch site to the point i start to lag if they surround me"

I also use the Zombie Horde plugin, but that spawns the mummy-like zombies, not the scarecrows and murderers, which he states he's finding there at night. The only change to the config with this new version of the plugin is to lower the murderers and scarecrow numbers to 40 each. He reported this happened after the plugin update.

Here's my config: https://pastebin.com/N3AbQjCH

I would recommend changing the "Minimum pop for near player spawn" config option. Your config currently sets this to 0 meaning zombies always spawn near players even if you have 1 player on your server, and since they are the only player on your server, all zombies spawn around them.

0x89A

I would recommend changing the "Minimum pop for near player spawn" config option. Your config currently sets this to 0 meaning zombies always spawn near players even if you have 1 player on your server, and since they are the only player on your server, all zombies spawn around them.

What should I set that to? I changed this to false: "Spawn near players": false, and now I'm being told by the players they aren't seeing the zombies at all.

UncleZed

What should I set that to? I changed this to false: "Spawn near players": false, and now I'm being told by the players they aren't seeing the zombies at all.

That will make zombies spawn at a random place on the map, so not necessarily in a place where players will be.