Strange server performance issues

Hi there,

I´m running a Vanilla Server on linux, Centos 7. I was using Amazon VPC for that on an 2 CPU, 6.5ECU and 8Gb Ram virtual machine.

Rust was fine and performance was greta, stable at 270fps, now I get a variation from 100 to 500fps.

Unfortunally I had to quit amazon because of their non DDos mitigation. I had been constantly getting attacked.

So I searched a new provider and found one with excelente antiDDos. I got an 6 CPU 8 Ram server and installed all like on the amazon (no oxide).

Last night I´ve started the server and immediatly I´ve got CPU @<100% constant with no users... (see picture).

I´ve loaded a previous backup on the server, but it has no so musch entities, arround 45K.

I´ve used the fps.limit -1

Can someone give me a direction on what can be wrong with my server?

Best regards!