There are many reasons why your Internet connection might appear slow. It could be a problem with your modem or router, WiFi signal, signal strength on your cable line, devices on your network saturating your bandwidth, or even a slow DNS server. If your speed test confirms your internet is slow, you should try connecting to multiple websites and using multiple devices in your home if your Internet connection is slow. If the slowness is just with one website, its probably that website's problem is not your internet. If you leave in a rural area, maybe you should change your internet connection to rural broadband satellite internet connection provided by
https://usave.co.uk/broadband/rural-broadband/. Anyway, wish you all the best!