Sharptools fully kiosk speed issue

I am running sharptools with fully kiosk browser on an 8" fire hd tablet. I have a background image on all of the dashboards and notice the speed of the application is functions slow. I also tried this on a Lenovo 10" tablet and the same. Could it be the size of the background image?

It’s possible - can you access a lower resolution version of the image? It might also be worth doing a test by creating two simple dashboards with just a few tiles on them and no backgrounds.

Is it the time to navigate between dashboards that’s slow on these devices?