Sorry, that’s impossible, its simply how the software is built.
Infinite scrolling (automatic page-turning) is how almost all modern social interfaces are developed (Facebook, Twitter, Pinterest, Instagram, Reddit, Youtube etc)
The software is designed to take you back to the post you last read. It takes some time to get use to it, but there are different features that can help.
Like “Summarise topic button” in large threads (found in first post)
Or pressing # to jump to specific posts. Also it is much easier to scroll by date using the slide bar.
It takes some getting use to, its different to the traditional forum software but hopefully after a few weeks you will grow to like it