Cyclocross is all about skills. If you've got them, you can get away with sub-par fitness. If you don't have the skills, you better have great fitness to get you through the entire race of using your energy to get through the technical sections.
However, if you've got both, you're golden.
Continue to work skills in with your training and recovery plan during the week. Every new skill will help you become a more confident rider and thus a faster rider too.