Are you taking full advantage of your convection oven (if you don’t know what that is, read What is convection?)?
You probably already know to decrease your oven temperature 25 degrees and decrease the bake time about 25 percent for convection oven vs. conventional oven.
But if you already know how to use convection cooking — and you probably do if you partake in holiday baking and cookie exchanges — I bet you’ll still learn something from Dacor’s convection oven baking tips (PDF).
Also, if if your convection oven cooking times seem to be longer now than when you first bought your convection oven, perhaps you need to clean your convection filter.
In a convection oven, the fan draws air through the filter. So especially if you do a lot of roasting, grease particles will stick to the filter and could obstruct the airflow. Check your use and care manual for instructions on how to clean your filter. Some, like Dacor convection oven filter, are dishwasher safe.