TPS Drop (doChunkUnload) [1.8.8]

Hi, why doChunkUnload takes so much performances? Im running a pvp server with a map of size 200x200 in a void world. Im using world downloader to keep chunks loaded but im having this issue. What’s due to? https://timings.aikar.co/?id=f9e5b933f9674df997026eade383dc80

Good day, what you can check:
Let your server run for a few hours without Citizens and WorldGuard and check if the performance is still dropping.
In general I have not made a good experience with WorldGuard. However, play only with the newest version.
Also check your other plugins to exclude a few other causes.

With kind regards

MrFireDevil :fire: