We have put together a short survey to capture your feedback in terms of what BT can do when you experience home Wi-Fi issues. We would appreciate it if you could take a couple of minutes to complete a short survey. Read more from here, Fix my home Wi-Fi
That's an ECI cab so no G.INP for now. There's still a little leeway for more speed over the next few days. Regardless BT won't do anything until 10 days after install.
have you tried using the test socket to see if that helps speed?