Sorry, here is example:
class someController extends ControllerBase
{
    public function initialize()
    {
        $user = Users::findFirstById($id);
        $this->user = $user;
        // do something on $user
        $user->someRelations; //etc
    }
    public function editAction()
    {
        $this->user->someOtherRelations; //etc
    }
}
I need allways do some operations on Users and related tables in initialize(), and other operations on Users and related tables in some Actions.
Is it better way/performance than (creating $user) $user = Users::findFirstById($id); in editAction() (omitting DRY)??