Why dedicated server started to lag

So i have a problem recently, it started like 2-3 days ago. im using a source built unreal and dedicated server but the server is lagging. I tried to make a new project and even reinstalled the source built unreal+vs2017 but no result. Its still lagging.

I’m having severe rubber banding with my dedicated server too, even in local testing it’s noticeable, and it’s even more terrible in our built game hosted on AWS servers. Anyone else had any luck fixing this?