Performance problem: DataSet 2 database

Hi group,
i've got a major performance problem.

I've got a dataset with 1 datatable.
This datatable has 3 columns with the following datatypes:
string 18;
datetime
decimal

There are approx 150.000 records in the datatable.
I need to save the values to the database.
Saving the records using a sp is way to slow (12 minutes!)

Does anybody have a faster way?
Ive tried:
http://www.codeproject.com/cs/database/generic_OpenXml.asp?df=100&forumid=171911&select=1344569&msg=1344569
But this didnt work due to the datetime column.

Please help me on this one!!!

TIA

VisualSanderDon't load all 150,000 records at the same time. Is there a reason you need all 150,000 records in there? Can't you do it in batches of, say, 1000?