Yes. Switch on Enable preloading on the Settings screen and save, then press Preload now. The first few pages are fetched at once and the rest follow in the background.
After that, a page the cache clears when you change it is warmed first, about half a minute later, rather than when the preloader next comes round to it. The Settings screen says how long a full pass over your pages takes.
Still stuck? Ask the developers who wrote it. We aim to reply within one business day.
