What CPU do you have? What motherboard do you have? Are your drivers up to date? Is your SATA controller in AHCI mode instead of IDE? Is your SSD firmware up to date? Is your BIOS up to date?
Also if havent done so allready, set your machine to use all processors during bootup. It is set to one by default, so might be able to get a nice boost there. You'll find the option in msconfig -> boot -> advanced options -> number of processors.