advice on fixing server overload

I have been working on an ocean themed modpack for a while and keeping getting AWFUL tick lag. Randomly after playing on a world in survival for a bit all mobs, entities, and block state changes become locked in place while my character can move around freely. The root cause is absolutely valkyrien skies/eureka, as when I remove them all works perfectly well. It is cause server overload even though I have yet to build any ships. I am attaching logs+modlist to see if anyone can figure this out better than me as I really want to include eureka.

[14:06:29] [Render thread/INFO]: Minimap updated server level id: -2118491706 for world ResourceKey[minecraft:dimension / minecraft:overworld]

[14:06:29] [Render thread/INFO]: Received config from the server:

[14:06:29] [Render thread/INFO]: Loaded 181 advancements

[14:06:30] [Render thread/WARN]: Mod(s) [valkyrienskies] are modifying Embeddium class me.jellysquid.mods.sodium.client.render.chunk.RenderSection, which may cause instability.

[14:06:30] [Render thread/WARN]: Mod(s) [oculus] are modifying Embeddium class me.jellysquid.mods.sodium.client.gl.shader.ShaderType, which may cause instability.

[14:06:30] [Render thread/WARN]: Mod(s) [oculus] are modifying Embeddium class me.jellysquid.mods.sodium.client.gl.shader.GlProgram, which may cause instability.

[14:06:30] [Render thread/WARN]: Mod(s) [oculus] are modifying Embeddium class me.jellysquid.mods.sodium.client.render.immediate.CloudRenderer, which may cause instability.

[14:06:30] [Render thread/WARN]: Shader clouds could not find uniform named ModelViewMat in the specified shader program.

[14:06:30] [Render thread/WARN]: Shader clouds could not find uniform named ProjMat in the specified shader program.

[14:06:30] [Render thread/WARN]: Shader clouds could not find uniform named ColorModulator in the specified shader program.

[14:06:30] [Render thread/WARN]: Shader clouds could not find uniform named FogStart in the specified shader program.

[14:06:30] [Render thread/WARN]: Shader clouds could not find uniform named FogEnd in the specified shader program.

[14:06:30] [Render thread/WARN]: Shader clouds could not find uniform named FogColor in the specified shader program.

[14:06:30] [Render thread/INFO]: Reloading radar icon resources...

[14:06:30] [Render thread/INFO]: Reloaded radar icon resources!

[14:06:30] [Render thread/WARN]: Mod(s) [oculus] are modifying Embeddium class me.jellysquid.mods.sodium.client.render.immediate.model.BakedModelEncoder, which may cause instability.

[14:06:30] [Render thread/WARN]: Mod(s) [oculus] are modifying Embeddium class me.jellysquid.mods.sodium.client.render.chunk.region.RenderRegion$DeviceResources, which may cause instability.

[14:06:33] [Render thread/WARN]: Time from main menu to in-game was 46.141014 seconds

[14:06:33] [Render thread/WARN]: Total time to load game and open world was 96.28902 seconds

[14:06:34] [Render thread/WARN]: Unable to play empty soundEvent: minecraft:entity.cod.ambient

[14:06:37] [Render thread/INFO]: Exception when loading hybrid-aquatic:strawberry_anemone texture, using material colour.

[14:06:37] [Render thread/INFO]: Black texture 16

[14:08:53] [Server thread/WARN]: Can't keep up! Is the server overloaded? Running 2385ms or 47 ticks behind

[14:09:07] [Render thread/INFO]: Xaero hud session finalized.

[14:09:07] [Render thread/INFO]: Finalizing world map session...

[14:09:08] [Thread-10/INFO]: World map cleaned normally!

[14:09:08] [Render thread/INFO]: World map session finalized.

[14:09:08] [Render thread/INFO]: JEI StartEventObserver received class net.minecraftforge.client.event.ClientPlayerNetworkEvent$LoggingOut

[14:09:08] [Render thread/INFO]: JEI StartEventObserver transitioning state from JEI_STARTED to DISABLED

I have not included the whole log as IDK how necessary that is/it is very long due to all compat wood/stone mods.