Thanks for the updates everyone.
Have you tried using a different DNS to see if that makes any difference at all? If you're playing on PS4 you can change the DNS using the following steps:
1. Open up your PS4 Settings and go to Network
2. Select Set Up Internet Connection
3. Choose WiFi or LAN Cable depending on what type of connection you're using
4. Select IP Address Settings (Automatic)
5. Select DHCP Host Name (Do Not Use)
6. Choose DNS Settings (Manual)
7. Enter 8.8.8.8 as the Primary DNS and 8.8.4.4 as the Secondary DNS. This is the public Google DNS, but if there's a different DNS you would prefer using instead that's OK as well.
8. Select MTU Settings (Automatic)
9. Select Proxy Server (Do Not Use)
10. Choose Test Internet Connection to confirm the changes
Let me know if you're still running into the same issues with stuttering or lag after that. Thanks!
/Kent