Why does my port 3074 have a latency of 160ms – 220ms while the game shows a latency of 30ms – 40ms?

The port is open. I'm playing Call of Duty. The game now says NAT open, so I thought that would reduce the latency. I can find lobbies faster now, and I think it's made a slight difference, but it still feels like severe lag. Following a tip, I looked in the resource monitor, and THAT'S…