Not sure why it's autoscrolling. I haven't seen that issue before and also the play feature is disabled on mobile. Which phone and os do you have? I'll try to reproduce the issue.
Btw, it's suppose to autoscroll on Play. That is the feature. Its what I call the 'storyteller mode'. I am thinking of using text-to-speech to read each event before proceeding to the next event so the 5 second delay is an arbitrary setting for now.
If you don't want the autoscroll, then you can just scroll the old fashion way on the sidebar. When you do the map will flyTo() the corresponding event.
https://www.dropbox.com/s/nq0y4mywomv5vd1/20220806_024731.mp...
The play feature is only if you want the events to autoscroll for you and its part of a storyteller feature I'm working on. So you don't have to use it to scroll.
Well. I don't think it is a good idea. In text-based content, you need to wait for some input from the user that he's done reading this part of the page and is ready to proceed further. And in your case, the page scrolls extremely fast. I'm no slow reader, but I barely manage to read the chapter headline before it scrolls.