Agents of S.H.I.E.L.D. had previously revealed that Yo-Yo wasn’t able to use her powers, but “Alien Commies from the Future” seemed to confirm that her powers aren’t entirely gone. She is still able to see at super-speed, but the rest of her body won’t cooperate.

Is Yoyo faster than Quicksilver?

That puts her right around the level of MCU Quicksilver, who is pretty weak compared to the comics. Joss Whedon said he was ‘faster than a bullet’, so 2,000mph or more.

Who cut Yoyo's arms?

During this run, both her arms were cut off by Hydra member Gorgon, and were later replaced with two prosthetic arms.