GIFs can be used to simulate that something is loading in the background, or that results are being computed.
To achieve this result, create a new page before the result page that should be delayed by the loading animation, then add the Loader element.
The Loader element is essentially the Image + Page Timer elements being used together.
Here is how it all works:
In the Image element, upload your favorite animated gif (Check the copyright!).
In the example above, the time is set to 5 secs. After this time, the quiz will automatically continue to the "Thank you" page.