You click, you wait, you wait some more, and so does every customer. The truth is your site probably is not broken; it is carrying too much weight. Three usual suspects are almost always behind it, and all three are fixable.
In plain English
A slow website is like a delivery truck loaded past its limit. The engine is fine; it is just hauling far more than it should. Take off the excess weight and it moves the way it is supposed to.
Three usual suspects
Giant images
A single unoptimized photo can weigh several megabytes and drag the whole page down.
Plugin pile-up
Every add-on you bolt on adds more for the page to load before a visitor sees anything.
Cheap hosting
Shared, underpowered servers make even a lean site feel sluggish.
Worth remembering
32% more visitors leave when load time goes from one second to three.
Speed loss is customer loss, plain and simple. Those extra seconds do not just annoy people; they send a third of them away before they see what you offer.
What to do about it
The fixes, right-sizing images, trimming plugins, and better hosting, are usually straightforward. If your site feels slow, I can find out why fast: speed optimization is a service I offer, or start with a free audit.