Low Ping

LowPing helps keep your Minecraft server smooth and responsive by optimizing how item cleanup works.
When a player dies, their dropped items stay on the ground longer — by default 10 minutes — instead of disappearing too quickly.
Players can customize this delay with /timerespawn <1|3|5|10|15> and choose how long their items remain before being cleared.

Features:

Adjustable item cleanup delay after player death

Command: /timerespawn (1, 3, 5, 10, or 15)

Message on join reminding players to set their timer

Works with Spigot, Paper, Purpur and Bukkit

Compatible with Minecraft 1.17.x–1.21.x

Perfect for:
Survival and semi-vanilla servers that want cleaner performance and less lag without losing dropped items too quickly.

WARNING: I'm not sure if Bukkin supports it, so check it out, but the plugin definitely supports other cores.