Poser requires Apple's OpenTransport library (presumably for the direct link to Curious), so disabling the internet components is not an option. After experimenting with disabling other system components, results were poor: 473 seconds. My guess is that Poser's mathematical operations don't call on the AltiVec hardware much. Of course, my machine is hardly typical: it's a souped up 7500, so USB support is software, and Poser is residing on an external drive because the Mac's still sporting the 1.5G SCSI internal it came with.