Raknetify (BungeeCord)
A BungeeCord plugin that uses RakNet to improve multiplayer experience significantly under unreliable and rate-limited connections.

Features

• Higher reliability and lower latency under unreliable and rate-limited client connections.
• Uses RakNet's multiple channels with priorities to achieve higher responsiveness.
• Supports ViaVersion setup on BungeeCord proxy itself.

How to use it?
https://github.com/RelativityMC/raknetify#how-to-use-it