I would post a pic, but something else now to learn about bandwidth
It the width of an elastic band ?
High website traffic (the number of vistors a website has at the same time) can cause a website to run slow. Websites can only handle so much traffic. The amount of visitors a site can handle is determined by its bandwidth. Some websites place you in a queue at busy periods to prevent the website becoming slow and unresponsive.
Also a page size (thread/topic) is impacted by Images that are not compressed or optimised, video, scripts or if the page has alot of HTML etc. When you a more of these on a page, the page will load more slowly which can reult in the website running slower overall, if all pages within it load like snails. This is what @joss is referring too.
A website such as this can also cause this problem if it doesn’t have enouth bandwidth to start with, also allowinf t many third party ads can can have the same affect etc.
Back on subject I once had a faulty TPMS on the front left that didn’t alert of a 75% flat tyre.