This data pack uses methods from server software like Spigot and Paper to optimize performance.
You can configure many settings and even enable a small anti-crash for your server.

How to use

Use /function clearlag:menu to modify settings, view clear statistics and configure which clear/warning messages are shown.

Methods this data pack uses

• Shorter item/experience orb despawn time (valuable items and death items wont get removed through clears)
• Automatic clears which remove all items in a configurable interval
• Freezes unused entities
• Merges experience orbs
• Removes collision from farm animals

The data pack was created with the aim of being high-performing and efficient, and should not cause any lag on its own.

Server software

Works on vanilla, bukkit, spigot, paper, all forks of paper and modded servers.

Note: You should always prefer server software such as Paper as it has a lot more customizable options and overall performance that data packs can never reach. You should only use this data pack if you have to use vanilla or you still have a lot performance issues.

Credits

Originally made by E4ry, modified with their permission: ClearLag Datapack