Just in case you are using an HP xw6600 Workstation just like I do and you feel that it is has an awful performance. There is a BIOS update available that might boost the workstations performance.
In my case on the workstation a full project build took over 16 minutes before the update, while my laptop, which is 3 years older, was able to do the same in just 12 minute. After the BIOS update the workstation did the same job in 7 minutes, so in less than 50% of the previous time.
Went from v1.18 to v1.35:
http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareIndex.jsp?lang=en&cc=us&prodNameId=3432822&prodTypeId=12454&prodSeriesId=3432821&swLang=13&taskId=135&swEnvOID=2103