Information

Full output of /ess version:

> [19:46:53 INFO]: Server version: 1.12.2-R0.1-SNAPSHOT git-Spigot-dcd1643-e60fc34 (MC: 1.12.2)
> [19:46:53 INFO]: EssentialsX version: 2.17.0.0
> [19:46:53 INFO]: LuckPerms version: 4.4.1
> [19:46:53 INFO]: Vault version: 1.5.6-b49
> [19:46:53 INFO]: EssentialsXChat version: 2.17.0.0
> [19:46:53 INFO]: EssentialsXSpawn version: 2.17.0.0

Server log
https://pastebin.com/nRyJqmhn

Description
Task: EssentialsPlayerListener$1DelayJoinTask(Single) is cuasing ping delay (77ms)

Screenshots
http://prntscr.com/oarmbq

This is likely an issue with your server and not the plugin. Timings v1 is notorious for displaying lag indirectly associated with an event. For example, most teleportation plugins will appear to be laggy because world loading/generation is laggy, and it is indirectly caused by teleportation of a player.

Upgrading your server hardware or using a faster software implementation like Paper (which also has the more accurate Timings v2) may yield better results.

EssentialsX has nothing to do with ping, because ping indicates the strength of the network that the server owner has opened the server and that server is available to everyone, generally. You must execute /tps command, which displays the server Ticks Per Speed.

Otherwise, we still need the full timings it has reported, so we can check which plugins can cause the problem.

In addition, you're using Spigot. If you're concerned about performance, we recommend switching to Paper - it has many more optimisations than CB and Spigot, is fully compatible with Spigot plugins and has a much more useful version of Timings.