Any way to Speed up Compressor?

We just recently purchased a new Mac Pro with 2 gigs of ram and 2 x 2.8GHz quad core processors - and have FCP Studio 6 installed.

We are capturing HD features uncompressed and then using Compressor to apply the bitjazz codec (http://www.bitjazz.com/en/products/sheervideo/) to them to shrink the file size down to a manageable size.

The problem is that Compressor seems to take approx. 6-8 hours to grind through each feature (approx 90 min TRT)

Does anyone have ANY advice about the best course of action to speed up Compressor? More Ram? More Processors?

when checking the activity monitor it shows the machine has around 1/2 gig of free memory and another 1/2 gig is "inactive"

The processor does't look like its overworked either?

Is there a setting inside Compressor to enable multiprocessor functioning?

any help would be apprciated.

thanks