Why does my screen get stuck on a page when I’m reading?

Why does my screen get stuck on a page when I’m reading?

I’m having trouble with my Kindle sometimes when I turn the page. The problem is that when I try to turn the page, the page won’t change, and I’ll try again a few times and it will either take a few minutes just to simply turn the page, or it will freeze completely and I’ll have to refresh my Kindle in the middle of my reading. Is there any way to fix this, or is my Kindle just slow?