Andriod App Emulation - Caching

I have saved my HA page on my android as a shortcut on my launcher and I’m quite happy with using HA this way. I find it much better and faster than any other app for HA. Only issue is that the content cannot be cached so that the page shows up even without network connection. I know I cannot do much when there is no network connection, but still… even if there is connection, I don’t see the point waiting for that extra second until the page content loads. Do you think there is a way to cache all UI content and avoid reloading it from the server?