Hear me out.

They should do the same with Dr Doom, introduce the character, give him a previous arc, the story about his kingdom in Latveria, give him actual purpose and backstory on the balance between science and magic.

Maybe make him younger, new blood for the marvel universe, his college professor is Reed Richards and some enmity comes from that relationship between victor and reed - make him show off his smarts, planning and strategize before going head to head against the fantastic 4, that would help position him as an actual threat, some made up villain that overthrows his father and burns his witch mother, let us see the full force of his vengeance and then pit him against the fantastic family.