on Join the server
its Make ping player to high

version？ and first join will download skin, besides we not any changes of the network usage

armourersworkshop-forge-1.16.5-2.0.0-beta.17
every time when a player joins,
can I solve this problem?
I just install it on the server, I haven't downloaded any skins yet.

if you not using any skin, this has nothing to do with aw, you need to check other mods.