Ibm db2 database creation is slow on very fast machine but fast on slow machine

The creation of empty database (IBM DB2 9.7 ) on Xeon CPU E5-1620, 8 core, 8GB, windows 7 is taking approximately 5.30 minutes.
But on similar software configuration using Core2Duo processor takes 2.00 minutes
Also, saving of data is very slow on the fast machine.
Kindly, let me know the reasons for slowdown of creation of database on Xeon processor?