Hey there Mikeyz77!
Sorry to hear that you are lagging. To confirm, can you do a quick Speed Test? Link us back the results! Speedtest.net by Ookla - The Global Broadband Speed Test
When exactly did you start to experience this lag? Activision Support Refer to this link to ensure your Port is Open!
Please let us know if any of this helps and a link of your speed test.
Thanks a lot!
^DD