What advantage? Having more muscle? Being more flamboyant? Having his Stand save his ass? Your entire argument on why Dio would be effective against her is something that’s not even accepted on VSB, something that not even other Touhou fans accept. Something that is so contradictory with what is said and established and her actual feats that it’s considered nonsensical and probably a joke based on her airheaded persona. Compress time in multiple ways? She could compress an infinite number of knives up his ass and everywhere his body and compress fucking past, present and future. What makes you even think that Dio has the experience in time manipulation to match Sakuya? What if she just reverses time(position) for him or space so that he can’t move? Oh by the way, you didn’t’ even comment on fucking space manipulation. Stopped time seeing or not, he’s not going to make it if he gets blitzed either. And do you seriously think the 100 range meter applies to her abilities too when she can affect even the moon? The fucking moon that’s more than just 100 meters away? Something that’s not just out into space? By the way good luck reacting to being erased in time. And even if Dio can move in stopped time for 2-3 seconds, that’s not a big help against someone who massively outspeeds him.
source: https://docs.google.com/document/d/1LnF2vxc_YrbpT4IvlzAAWrIdP3utl2UoB-bCD9A0EBc/edit