Tps lag only able to hold 5 player

help i have so much lag idk how its so weird: https://timings.aikar.co/?id=77cafc99c6364244b68c254842d4087f

1.14.4, and 1.14 in general, has major issues with chunk loading in Minecraft servers.
When players load many chunks, the TPS drop down to an unplayable level.
I have the same issue, I tried rendering the world with /worldborder fill, i tried to disable autosave and i tried to put the WorldGuard flag “chunk-unload” in every world, but it didn’t do much.

The only thing i suggest you is to downgrade to 1.13.2 until Mojang patch this error.

I hope they do patch it. I know 1.14.4 was supposed to be the final 1.14 release.