A very pretty slideshow is not a game.
There's a trade off: sacrificing frame rate for graphics. For movies and suchlike, frame rate doesn't matter, they can spend hours or even days waiting for the final result to render. This doesn't really work for games though (yeah, who'd have thought). Sure there're some tricks (loading screens) you can pull, but in the end a game needs a certain frame rate to be playable - very much dependent on the type of game.
For example, I don't mind playing Morrowind at 20FPS, it's an old game that was more or less designed to run like that. On the other hand, playing League of Legends at 20FPS is a nightmare.
Another example, I could play a game like chess at less than 1FPS, nothing much needs to change while I'm thinking after all. Again, I wouldn't dream of playing a shooter at 1FPS, I'd be dead non-stop.