I've got a powerbook firewire, with 100 less mHz, one less processor
and the same amount of RAM. I put 9.2.1 on over everything, and I have to agree it went rather slowly. (Used up 31 MB of RAM, before I turned off all the useless shit in EM)
So... I did what all folks do when they're tired of troubleshooting, and wiped the machine. Installed 9, then 9.1, and then 9.2.1. This powerBook hasn't run faster! I put 10.0.3, and then 10.0.4. Still slick as snot, and classic starts up about 30% quicker now w/ 9.2.1.
Maybe there's a problem w/ dual processors? That's the only other thing besides wiping the drive. Who can really say that he or she hates starting w/ a clean slate anyway
Just my $0.02