Help with improving server TPS, Low CPU and Ram usage (Possibly caused by large number of entity's?)

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/u/Shiv_1_5

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Help with improving server TPS, Low CPU and Ram usage (Possibly caused by large number of entity's?)

Log1 https://mclo.gs/6DboHEv

LatestLog https://mclo.gs/McS1x6b

Spark Profiler https://spark.lucko.me/OKva3fRHIL

OS: Linux - Ubuntu 24.04.2 on aarch64 | VM.Standard.A1.Flex 4 OCPU, 24GB Ram (utilizing 16gb for the server) | Free Oracle server

Server TPS drops from 20 to around 15-11 when loading large number of mobs ~500, in a modded structure or even exploring the world. Not well versed in spark but ~10% of the server bandwidth is spent on chunks, ~20% on dimensional stacking specifically relevant to this modpack, and about 50% spent on loading mobs. The moment a player in a structure with a lot of mobs loads into the server, the TPS tanks to 12-ish while the server does not really use more CPU or Ram. Not fully sure what I can do to improve server performance here, already reduced render distance to 10, added zgc garbage collection, and reduced entity broadcasting range to 50%. Maybe adding a mob cap or mods to improve entity lag? Any suggestions would be appreciated

Small spikes in cpu when starting up server but overall quite low utilization

stable utilization of Ram, ~7 gb

submitted by /u/Shiv_1_5
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