I keep lagging and rubber banding.

I keep lagging and rubber-banding when moving around, fighting and talking to NPCs. Says my latency is around 450-750ms but idk why. I have good internet and connection. Whats up? ppl told me there's no lag on this server.
I'm in North America and my VPN is off.

Same here. Just started on this server. My internet is good, never had this issue on retail.