Wang Manyu's upset due to physical condition?

Zhou Yu, an ex-China table tennis international, commented on Wang Manyu's early elimination in Chongqing: "Satsuki Odo really did play at a very high level today in terms of shot quality. Whether it was the quality of her individual shots or her accuracy on attack, she was brave enough to go for quality and still maintained a very high success rate. That put Wang Manyu under tremendous psychological pressure. That said, I personally feel the main issue was still on Wang Manyu’s side. Was she perhaps not feeling well physically? Or was she still in the process of adjusting her form? From today’s scoreline, she clearly wasn’t able to hang in there, which is why it was quite worrying to watch."