Eh, I'm of two minds with the Ciri stuff.
On one hand, she was trained by Geralt, whose entire demeanor is big badass with a soft voice and several big sticks. She's going to carry that arrogance (especially as a continuation of the same story) and it's likely she would act in a similar manner, but with her own quirks as evidenced by previous games. Hence, you get overly confident and "oh shit, I fucked up" kind of reactions from her to things she takes for granted, which is a lot because she was trained by Geralt, who fucked up a lot while still being a badass.
I get it.
On the other hand, without the entire "witchers are basically drug enhanced humans" angle behind it, her being a witcher is laughable at absolute best. It's a common problem with video game artists in the modern era. They try to make 120lb broads the equivalent of 240lb jacked dudes in most situations, and it rings (correctly) absolutely false for the majority of the playerbase. Not that I want a super butch lady as a protagonist, but she should be huge lesbian levels of jacked if she has been constantly swinging swords around for years. Her being built like a barista at a local coffee shop just comes off as... retarded. Who cares about her face; she's literally not physically descriptive for the role she is playing. Or for the backstory. Or for what she is being shoehorned into doing.
She's just not believable, even in a fantasy world.