If your real world application consists of inserting the same values all over into your database, think about a better normalization for your schema.

If the data have a different source, like a text file, consider using the bulk import feature that your database engine most likely provides.

Also it's a good idea to set RaiseError to 1 or to do some error checking yourself, otherwise you might miss important error messages (that can also tell you about possible performance problems).