Build a Custom .jar file for a Minecraft server to have better performance

Hi! I'm currently in last year of MS in computer sciences, and I have administrated and developed a Minecraft server for years. Thus, I worked a lot on Spigot's optimization problem. I would be happy to help you optimize your Minecraft server. However, I take the liberty of saying it, the problem does not come down to making a JAR. It is a fundamental work, which depends a lot on the nature of your server. A lot of ways are possible, and I would be happy to show you them, and to implement the ones you want. Obviously, redoing a JAR is one possibility, but it is only one among others, and not necessarily the most efficient one.

Hello - I am an experienced Minecraft Developer. ALL OF THESE JARS HAVE EXTREME PERFORMANCE BOOSTS AND AT LEAST 19.99 ON A 2-core 1gHz processor! I have created a ton of Custom Jars in the past Including: 1.7/1.8: Custom knockback profiles, asyncronous threads (multithreading), anti redstone crashers, anti client crashers (including exploits), Move- and hit detection, (best performance) 1.12: Several improvements in chunk loading, optimization, multithreading, tnt improvements, mobai 1.15: same as 1.12 1.16: - Unlike other custom spigot forks, this one will be updated to new Minecraft versions. This is why the license duration is not unlimited. - Based on the very latest version of PaperSpigot. - Fix some possible bugs and vulnerabilities introduced by PaperSpigot due to outdated libraries - Simple and Stupid. Features that plugins have implemented is up to plugins. - The default configuration files are optimized - More algorithms are async than PaperSpigot - Async player data saving - Async path finder - Configurable Custom ServerModName - Extended view distance (no-tick-view-distance) - Many algorithms are optimized. - Removed a lot of useless code, improved performance and reduced size. - Optimizations that may affect gameplay behavior are configurable.