Before doing any animation work in Photoshop, be aware that some effects can drastically reduce you performance speed. I ran into an issue early on that dropped my framerate to 0.23 fps. If this is happening to you, then the first recommendation is to reduce your rendering resolution:
Don’t be alarmed when your animation looks somewhat Nintendo-esque…
This is temporary. Check your framerates again.
Better, but not great. You may also need to rasterize your layers if you are applying heavy imaging effects, or make sure that your layers/objects are not retaining higher resolution images.
Sadly, I had to give up on a depth of focus effect:
…and all that could have been.