I will get the adaptor and borrow my lads homeplugs to see it improves.You might find that the adaptors and homeplugs help, the only way to find out is to try.
Most people will advise a wired connection whenever possible. Personally I think that if there was a problem with the WiFi connection it'd be apparent at all times not just when the football is on, but tbh it's one of the iptv bases to cover if you're having issues so go for it.
Many thanks for your help