The Delta makes it harder to forget that we need to apply wake turb for lighties behind them. They do go quite a bit quicker in cruise than the older models.
As for jet like performance - the 400 series are equal with jets from 40 to touchdown. The 300s used to be faster from 40 to touchdown, but they seem to be slowing down a touch earlier than they used to. I know the jet jockeys are complying with their company's SOPs to suit the LCD, so you do have an excuse.