Getting a skull of an offline player causes lag

[ChrisTaylor201]

Information

Full output of /ess version:

[14:25:42] [Server thread/INFO]: Server version: 1.15.2-R0.1-SNAPSHOT git-Paper-384 (MC: 1.15.2)
[14:25:42] [Server thread/INFO]: EssentialsX version: 2.18.0.18
[14:25:42] [Server thread/INFO]: Vault is not installed. Chat and permissions may not work.

Server log: https://gist.github.com/christaylor201/54ca7c5a575314395371c0d25f1a0403

EssentialsX config: https://gist.github.com/christaylor201/b8435f6d240c1df640edc779676ba1e6

Help request

Problem
Getting a skull of an offline player using /skull command causes lag. I've noticed similar issue with other plugins using skulls in GUIs (BossShopPro, VotingPlugin) or on armor stands (LeaderHeads).

What I have tried
I've tried to replicate this issue on a local server with nothing but EssentialsX installed; it was a success, see the Timings report. It isn't that noticeable on a local server, but on a production server with ~10 players online and 50 plugins it drops TPS quite a bit.

Screenshots
none

[pop4959]

Almost certainly not an EssentialsX issue. Please see #3410 and #3555 for recent problems with this command. Notably, you should try either 1) updating Paper, or 2) downgrading Paper to build 354 or lower (according to the former mentioned issue).

[ChrisTaylor201]

Okay, thank you, I wanted to be 100% sure. I'll forward this issue to PaperMC.

[ChrisTaylor201]

I was told by aikar that you should create the item asynchronously to avoid this issue, see the ticket.

[JRoy]

Closing in favor of #3579. I'll handle this on my command rework PR.

[ChrisTaylor201]

Oh, sorry for reopening, I haven't checked the issues before commenting.