How fast a site is going to open is dependent not just on the Internet connection of the customer, but also on the connection of the server where the internet site is hosted and on the network infrastructure - routers, server network card, and so on. Slow connection or hardware that can't handle a high volume of inbound and outgoing traffic may have powerful influence on the consumer experience of your website visitors and the efficiency of your site due to the fact that people shall probably see error messages that the website is not available or it will take some time for your content to load. In case this kind of a thing happens, it's not very likely that the visitors will return to the internet site. That is why you have to always examine the connectivity of any hosting server that you buy and not just the main hardware components such as hard disk drive, central processing unit and physical memory.
