This is a problem in all models. During a model build, lists are organized in the way that they are added.
Why is this a problem?
Through research, we discovered that dimensions that are not in order can make the engine work harder.
How to correct:
On the Modules pane (Model Settings>Modules) look for lists that are not in order in the Applies To column. Click the Applies To row that you want to re-order, then click the ellipsis. In the Select Lists dialog, click OK. In the Confirm dialog, click OK.