iOS Keynote Lags—Rasterize Vector Graphics?

[musicwind95]

I've built a presentation (on Desktop Keynote) where almost every slide has one or more PDF graphics (actually Illustrator files). They load okay on the mac (slight lag when displaying the slides with lots of them), but I'm getting horrible lag on the iPhone version. I suspect its rasterizing each vector before rendering it, and that's taking forever on the A5 chip. Is there a way for Keynote to pre-rasterize all the graphics at their current sizes (meaning I don't have to export each image through Illustrator and put them back in, trying to make things the same size) so it'll load faster across both platforms? Is there a Rasterize command in Keynote that I'm missing?

iPhone 4S 5.1b3
iMac8,1 OS X 10.7.3
Keynote '09