You scroll incorrectly. A strange accusation, right? But you are. If you're still skipping long pages on your iPhone, you're just wasting time. There is a much faster way to get to the location you need, whether it's a long website, a long conversation in news, or a multi-page document.
In iOS 13, the scroll bar on the right side of the display is now interactive. In other words, you can actually grab the bar when it pops up and quickly pull it up and down. If you have successfully selected the scroll bar, it will get bigger and create haptic feedback. From there, just scroll as fast as you like.