Describe the bug

Happens in E2EE modpack. I opened my old world and on my base I can see only 20 FPS.
When I profiled it with /sparkc profiler it pointed on Alfheim:

https://spark.lucko.me/BSzphEggnH?hl=71

I dont know what block / mechanism / entity is causing this. Would be glad to get help on investigating.

I cannot stably reproduce this issue - rejoining this world again fix FPS back to normal.

Its a skyblock btw

Reproducibility

• I reproduced this issue with as few other mods as possible installed.
• I am unable to reproduce this issue consistently.

Logs

https://mclo.gs/usbZfGz

• Alfheim 1.4
• Forge 2860
• MixinBooter 9.4
• Java 23.0.1
• OS Win 10
• GPU NVIDIA

I will push a dev build soon trying to address this

Could you try again with the new dev build?

Could you try again with the new dev build?

I cannot stably reproduce the issue on old version.
I tried to log in after game loading. Tried to stay in world for an hour. Tried to fly around - nothing reproduce this FPS drop. So, even if i would install new version, how it could be useful?

I am pretty sure this is fixed, if it isn't please reopen this issue