Airplane VS Starlight

Purpur includes Airplane, when is great for lag because it dynamically limits how much entities "think" or make decisions based on how far they are from players through a feature called D.E.A.R. Regardless of the choice you make, here is a great guide with a bunch of config changes which greatly improves server performance (and explains what each one does)! Wish you all the best with your server!

Try using this guide and also use a paper fork like purpur or airplane. You can also use these premade performance configs.

If you need even more performance, you may want to look into https://airplane.gg.

Use software like paper or airplane or purpur. All derivatives of each other. Paper is a fork of spigot with preformance improvements and bug patches. Airplane is a fork of paper with minor preformance improvements. Purpur is a upstream of Paper and airplane adding various customizations. Use aikar's flags. DO NOT use optimization plugins, they tend to only make things worse. Pre generate your map, but this has the downside of terrain being stuck through generation changes like 1.18.

What i would recommend doing is finding an old laptop or pc that isnt going to be used, and hook it up to ethernet. Then grab a server jar like Paper, and fire it up. Paper is going to be recommended in this case, since you are using not the best hardware. i run my servers off of old pcs (Intel Core i5-4950T @ 2GHz, 16GB DDR3 SDRAM, and 256GB SSD) use Airplane and haven't seen any lag so far. If that's not possible, then find a paid third party hoster like Pebblehost and use that instead

Look into different server software. Vanilla will start lagging when there are more than 10 players at a time. Use Airplane or Purpur in this case. Figure out what plugins you want and learn how to install and configure plugins

Full description: https://airplane.gg/

Just be sure to get airplane-purpur as it's way more performant than purpur. You can get it at https://airplane.gg -> Downloads -> Purpur. I use it for my small 2 GB server with 2 cores and its runs buttery smoother with 6 players and a render distance of 16

Actually try Paper instead of spigot. Paper is a fork of Spigot which focuses on high performance and bug fixes. And usually runs faster than Spigot. If you rlly need something to run faster than Paper, Tuinity or Airplane will work

Well Starlight seems to be out already. And it works better than Phosphor and supports 1.17 Fabric

https://github.com/Tuinity/Starlight makes chunks load way faster though, works for me

Go here and find column "Releases"(on right), and click on "tags", under description of latest version you can find word "Assets". Click on it. Download only file with "starlight" in name, and last bat not leatest -> put into mods folder. Fabric loader is required.

If you don't want to use the patch, or you are facing this issue but are not using paper(or playing singleplayer), you can use starlight (and ask your friends to do so too) on the client side. The jar file can be found in the Releases tab (only available for fabric atm).

Here is what I have found is the best for FPS boosting and general optimizations in 1.17:𝗜𝗡𝗗𝗘𝗫❎ = not compatable w/ other mods (does not apply cross catagory)🔼 = better of the incompatable ones📖 = requires an API to work[#] = footnoteAll mods here are for the fabric loader (https://fabricmc.net/use/)All mods here are for 1.17.x-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉𝗙𝗣𝗦 𝗕𝗢𝗢𝗦𝗧𝗜𝗡𝗚❎🔼Sodium https://modrinth.com/mod/sodium-Sodium Extra https://modrinth.com/mod/sodium-extra-Indium https://modrinth.com/mod/indium❎[1]Enhanced Block Entities https://modrinth.com/mod/ebeCull Leaves https://modrinth.com/mod/cull-leavesEntity Culling https://www.curseforge.com/minecraft/mc-mods/entitycullingBetter Beds https://modrinth.com/mod/better-beds📖[2]Tweakeroo https://www.curseforge.com/minecraft/mc-mods/tweakeroo𝗥𝗔𝗠 𝗥𝗘𝗗𝗨𝗖𝗧𝗜𝗢𝗡Hydrogen https://modrinth.com/mod/hydrogenFerriteCore https://modrinth.com/mod/ferrite-core𝗪𝗢𝗥𝗟𝗗 𝗚𝗘𝗡/𝗟𝗢𝗔𝗗 𝗜𝗠𝗣𝗥𝗢𝗩𝗠𝗘𝗡𝗧Lithium https://modrinth.com/mod/lithium𝗟𝗜𝗚𝗛𝗧𝗜𝗡𝗚 𝗜𝗠𝗣𝗥𝗢𝗩𝗠𝗘𝗡𝗧Starlight https://github.com/Tuinity/Starlight/releases𝗕𝗢𝗢𝗧𝗜𝗡𝗚 𝗜𝗠𝗣𝗥𝗢𝗩𝗠𝗘𝗡𝗧❎🔼LazyDFU https://modrinth.com/mod/lazydfu❎DashLoader https://modrinth.com/mod/dashloader𝗡𝗘𝗧𝗪𝗢𝗥𝗞𝗜𝗡𝗚Krypton https://modrinth.com/mod/krypton𝗧𝗣𝗦 𝗜𝗠𝗣𝗥𝗢𝗩𝗠𝗘𝗡𝗧📖Fast Furnace https://www.curseforge.com/minecraft/mc-mods/fast-furnace-for-fabric𝗔𝗣𝗜MaLiLib https://www.curseforge.com/minecraft/mc-mods/malilibFabric API https://modrinth.com/mod/fabric-api-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉-҉𝗙𝗢𝗢𝗧𝗡𝗢𝗧𝗘[1] Enhanced block entities is not compatable with Sodium unless Indium is also installed and a special version of sodium which can be found here: https://github.com/CaffeineMC/sodium-fabric/actions follow instructions below to get correct version.Step 1: Go to https://github.com/CaffeineMC/sodium-fabric/actionsStep 2: Click on the latest workflowStep 3: Click on the text labled "build-artifacts"Step 4: Open zip that was downloadedStep 5: Take out file that ends in ".jar" and only ".jar"Step 6: Put the .jar file into your "mods" folder and if Sodium is in there remove it[2] Tweakeroo with the settings (disableBlockBreakingParticles, disableDeadMobRendering, disableParticles) in TweakNo Toggles set to true

Use Iris Shaders, Starlight, and Lithium (other two are on curseforge, they are all mods but don't need Fabric API)

Delete phosphor from mods, and download and paste this

Go here https://github.com/Tuinity/Starlight/releases download the appropriate release for your Minecraft version and place it in your mods folder. For best results use sodium, lithium and hydrogen with it.

Starlight: Complete rewrite of the lighting engine. It also works better than Phosphor