It's been memory, disk, bandwidth, etc. 8 does have 8 processors, They're 150mhz R4400 chips with 16k instruction and data caches, and a 1mb secondary cache. 9 does have 2 R10k chips running at 180mhz. It's got 32k instruction and data caches, and a 2mb secondary cache. Well tuned, jabba should be able to run circles around 9.
Fear leads to anger.
Anger leads to hate. Suffering leads to book deals.