Paint_Ninja

Remove Optifine, it's known to cause problems sometimes.

The version you are using is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

Remove Optifine, it's known to cause problems sometimes

Your log says the following: You're missing a lot of library mods that your installed mods require, this issue isn't specific to Forge. Download the missing mods and their versions from https://www.curseforge.com/minecraft/search?page=1&class=mc-mods&gameFlavorsIds=1&gameVersion=1.19.2&sortType=1&pageSize=20

Remove Optifine, it's known to cause problems sometimes

The version you are using is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

Your partial log doesn't show any problems. Please share a pastebin.com link containing your debug.log file

The version you are using is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

Remove Rubidium - it's crashing

According to your log, the server started in about 10s and then 10s later it started saving things and shutting down. Looking more closely at near the start of your log, it looks like you've got some broken mods installed that are trying to directly modify client-side-only things on a dedicated server, which'll cause problems. Make sure you've removed all client-only mods from your server. Check for updates for your mods here https://www.curseforge.com/minecraft/search?page=1&class=mc-mods&gameFlavorsIds=1&gameVersion=1.20.1&sortType=1&pageSize=20 (thanks for putting your log in a spoiler btw!)

Please upload logs using https://pastebin.com or https://paste.ee instead of Google Drive

Please upload logs using https://pastebin.com or https://paste.ee instead of Google Drive

The first one looks like a log from running the Vanilla game without Forge. The second one indicates a possible driver issue. Have you tried updating your graphics drivers? If you're using the CurseForge launcher, you need to turn it on in the settings. To enable debug logging in the Curseforge app, open the app and click the cog/gear icon in the bottom-left of the app. This will open the app settings. In the app settings, choose Minecraft under Game Specific settings and toggle on the Enable Forge debug log option, as shown below.

Remove Optifine - it's known to cause problems. Upgrade to 1.19.4 - the version you're on has been abandoned by Forge and most mod devs, in favour of the more stable 1.19.4 version.

The version you are using is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

The version you are using is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

You have other mods installed on the server which are only meant for clients. Check your mod list and remove those

Please update to the latest version of Forge for 1.18.2 as it has improved logging which might help us diagnose your issue

Remove Optifine - it's not intended to be installed on servers

The version you are using is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

No worries. You don't have to update manually if you're on a recommended (aka stable) version. It's only optional (aka beta) versions that are manual. Random screenshot I found online: On here, set preferred software version to "Recommended" (not "Recommended + Optional") and make sure both the "Check for updates" and "Download drivers and software" are enabled. Then you should at least get update notifications.

I'm sorry but to be honest I'm out of ideas. I had a suspicion a driver optimisation broke with the early loading screen and window title change introduced in 1.20, but you're claiming the issue persists in 1.19.4 as well. The Spark reports show performance is just as bad server-side on Fabric as on Forge and there's no indication of anything wrong in the debug.log. The screenshots you've provided don't really show the issue, would probably have to be a shadowplay/obs recording or similar to see an intermittent performance issue that can't really be captured well by screenshots. What puzzles me most is you say it used to be fine and now isn't. Could it be that hypothetically, Optifine improved performance on your specific hardware, you got used to it, then once you removed it, it felt worse? Only real solution I can suggest if you're certain perf was fine before and now isn't is a clean reinstall of Windows... but there's no guarantees that'll fix it.

This is the Forge forum, Fabric isn't supported here

The version you are using is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

The version you are using is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.