Thanks for posting and a warm welcome to the community.
Sorry to read that you are experiencing issues with your broadband connection.
I've managed to locate your account, the line and hub have come back as fine. There are no faults reported and the network segment is running fine. I am unable to see any apparent issues that would cause the slow speeds nor packet loss.
Are you able to post an up to date BQM graph for me please?
Have you got another router or any power-line adaptors connected at all?
Can you complete a speed test direct to the Super Hub to see if the speeds have improved please?