I am going to say that it is typical since the Aubers are set up by Auber for Bradley smokers. And the meat is sucking up the heat being put out. If you go to the site, for the model Auber you have there are manuals available for trouble shooting and use. If the results from smoking are not satisfactory, you might want to do an auto tune. The instructions that came with your controller explains how. It is important to write down the PID values currently on your controller before doing an auto tune just in case you want to go back to the factory setting. You will also need to have a dummy load simulating meat (mass and moisture). A disposable foil pan with damp, not wet, sand should do the trick (I think Auber uses a rice cooker as an example). Anyway, 5 to 7 lbs should do it.
Use the search feature on the SI Forum for auto tune and learn from those who have gone through the process. Saves a lot of trial and error. Good Luck.