Mojang released Minecraft 1.13.2 which should fix some of the performance issues everybody's been having. It doesn't address the more than 1000x performance loss since Minecraft 1.6 (no joke!) but at least it's something
Changes in 1.13.2
- Improved performance of upgrading worlds
- Improved startup time
- Improved performance of turtle pathfinding
- Improved mob spawning performance
- General other performance improvements
- MC-134115 - Containers next to chunk borders can lose items when upgrading
- MC-91621 - Mobs repetitively despawn and respawn rapidly at high Y coordinates (causing lag)
- MC-137331 - Hostile and neutral mobs rarely spawn in positive Z coordinates
- MC-137300 - ConcurrentModificationException thrown when upgrading world
- MC-137229 - Book corruption when 1.8 world is loaded in 1.13
- MC-136888 - Game crashes when shift-right-clicking a shulker box while holding bone meal
- MC-136759 - Spawn eggs do not make sure that the entity is valid for the egg, allowing for arbitrary command execution in certain cases
- MC-136526 - Crash when generating near top of world
- MC-135453 - Crash while rendering block entity
Spigot has released a new version for Minecraft 1.13.2 which I build this morning and put on the server. Right now we're somewhat forced to use Spigot for our server since performance is so bad things become unplayable with only a hand full of people on running the vanilla server.jar. With Spigot things seem to run well for the most part. Also there's a new version of Optifine that works with 1.13.2. If you're having trouble installing Optifine without Forge, check the spoiler.
Spoiler!
vBulletin Message