A continuance of any conference or hearing required by Section 5502 shall not be favored, but may be granted by a workers’ compensation judge upon any terms as are just upon a showing of good cause. When determining a request for continuance, the workers’ compensation judge shall take into consideration the complexity of the issues, the diligence of the parties, and the prejudice incurred on the part of any party by reasons of granting or denying a continuance.