Another Alternative, Currently, foldble phones gaenerally fold in half, like opening a book halfway. Alternatively, you can choose to fold just the screen. Similar to a laptop, where only the thin screen is opened, it’s like a book where only the front page is opened and then closed again.
As a compromise, perhaps a different implementation could be considered: instead of rendering every page during the flipping process, the content around page 100 could be rendered only after rapidly flipping to that point.