Server running low on FPS even with 30 Players

Hi,
i am currently running a dedicated server on my ubuntu 18 mashine

  • 8 CPU vCore
  • 32 GB RAM
  • 800 GB SSD


At first i had no problems with lag. even 80+ player with 100kk entitys. But after the wipe it crashed me everything.

I already reinstalled the server, added the current map and disabled all plugins but still got lags on the server.

As soon as about 40players join the server fps drops to 15.

Anyone who can help me with this?

cpu usage is on 30%

Merged post

Update:

getting this in the start log

Fallback handler could not load library /home/steam/Steam/steamapps/common/rust_dedicated/RustDedicated_Data/Mono/libadvapi32.dll
Fallback handler could not load library /home/steam/Steam/steamapps/common/rust_dedicated/RustDedicated_Data/Mono/libadvapi32.dll.so
Fallback handler could not load library /home/steam/Steam/steamapps/common/rust_dedicated/RustDedicated_Data/Mono/advapi32.dll
Fallback handler could not load library /home/steam/Steam/steamapps/common/rust_dedicated/RustDedicated_Data/Mono/libadvapi32
Fallback handler could not load library /home/steam/Steam/steamapps/common/rust_dedicated/RustDedicated_Data/Mono/libadvapi32.so
Fallback handler could not load library /home/steam/Steam/steamapps/common/rust_dedicated/RustDedicated_Data/Mono/advapi32
Fallback handler could not load library /home/steam/Steam/steamapps/common/rust_dedicated/RustDedicated_Data/Mono/libadvapi32.dll
Fallback handler could not load library /home/steam/Steam/steamapps/common/rust_dedicated/RustDedicated_Data/Mono/libadvapi32.dll.so
Fallback handler could not load library /home/steam/Steam/steamapps/common/rust_dedicated/RustDedicated_Data/Mono/libadvapi32.dll
Fallback handler could not load library /home/steam/Steam/steamapps/common/rust_dedicated/RustDedicated_Data/Mono/libadvapi32.dll
Fallback handler could not load library /home/steam/Steam/steamapps/common/rust_dedicated/RustDedicated_Data/Mono/libadvapi32.dll.so
Fallback handler could not load library /home/steam/Steam/steamapps/common/rust_dedicated/RustDedicated_Data/Mono/advapi32.dll
Fallback handler could not load library /home/steam/Steam/steamapps/common/rust_dedicated/RustDedicated_Data/Mono/libadvapi32
Fallback handler could not load library /home/steam/Steam/steamapps/common/rust_dedicated/RustDedicated_Data/Mono/libadvapi32.so
Fallback handler could not load library /home/steam/Steam/steamapps/common/rust_dedicated/RustDedicated_Data/Mono/advapi32
Fallback handler could not load library /home/steam/Steam/steamapps/common/rust_dedicated/RustDedicated_Data/Mono/libadvapi32.dll
Fallback handler could not load library /home/steam/Steam/steamapps/common/rust_dedicated/RustDedicated_Data/Mono/libadvapi32.dll.so
Fallback handler could not load library /home/steam/Steam/steamapps/common/rust_dedicated/RustDedicated_Data/Mono/libadvapi32.dll