Problem FTB Presents SkyFactory 3 Server CPU usage

X

xxxKubik

Guest
Hello,
I have server started with this command:
java -Xms4096M -Xmx8192M -jar C:\Hry\Minecraft\FTB_Presents_SkyFactory_3_SERVER\forge-1.10.2-12.18.3.2215-universal.jar

server usin over 50% CPU when no client connected and it spikes over 80% when only one client connected.
CPU: Intel i7 5820K overclocked to 4.2 GHz base
RAM 32 GB
SSD: SanDisk SDSSDHII480G
2lc65w4.jpg

I want to know what I doing wrong.
It seem very weird that high CPU usage when Average tick is 0.060 ms.

Thanks in advance for all answers and help.