Mine would have longer and longer delays on each page turn when I started using it again last year. It's a 10+ years Paperwhite as well. I jailbroke it and ins

Mine would have longer and longer delays on each page turn when I started using it again last year. It's a 10+ years Paperwhite as well. I jailbroke it and installed KOReader. Suddenly, no delays, great interface, wi-fi sync with Calibre. I might replace the battery one day, but it still lasts 2-3 books.