Really sorry to hear you're experiencing speed issues.
I've located your account and I can see an issue with the network in your area causing slow speeds and intermittent connections - Ref.(F005056767). Our technicians are working to get this sorted as soon as possible and have set a review date of 13th February.
I'll check back with you on the review date to re-run a diagnostic.
Tech fan? Have you read our Digital life blog yet? Check it out