Any Norcold experts?

1) Run it on propane; they tend to cool faster that way.
2) As kerrlakeRoo says, fill it with already chilled stuff. I have about 3 dozen freezer packs that I've acquired over the years, and fill my fridge with them when I first fire it up. Frozen milk jugs are good, too. I also use a small, battery-powered circulation fan that makes a noticeable difference. Also, you might have to move the thermistor on the cooling fins to get it to cool more.

Lyle

They can be slow, especially the bigger units. It can help if you fill the unit with some items that are already chilled.