Name an actor/actress you consider to be a terrible actor/actress but gave a decent performance in a particular movie and please explain why

One that comes to mind is Zendaya in The Greatest Showman. I was expecting her acting to be absolutely horrible but it actually wasn't bad. It was still by no means a good performance but she was convincing and serviceable enough. She did perform some emotional moments pretty good. But there was plenty of traces of her bad acting in there because of how stiff and wooden she was a lot and A LOT of her line delivery was over-the-top and hammy. Still, she was decent in The Greatest Showman, though not good. I still consider her to be a TERRIBLE actress but her performance in The Greatest Showman was decent and serviceable. Almost every terrible actor/actress has at least one decent performance (Maybe even good if they're lucky enough) just like how almost every great actor/actress has at least one terrible performance. There are plenty of actresses that would've been better suited for the role of Anne Wheeler in The Greatest Showman, who would also be superior singers as well, but Zendaya's acting, as I've said several times, in The Greatest Showman was decent.