Hard to say without knowing what kind of jobs she is applying for. Also I don’t know how the job market conditions are in Europe. However... her CV comes off as

Hard to say without knowing what kind of jobs she is applying for. Also I don’t know how the job market conditions are in Europe. However... her CV comes off as somewhat unprofessional and nonserious. Someone with a PhD should not be including their high school on a CV. Next, a PhD in statistics that took 1.5 years to finish sounds like a nonserious PhD. If she’s applying for roles in Switzerland or the US, or other major markets, that expect a PhD in stats, I would expect her not to get much traction. Next, there’s simply not much demand for R programmers. In the US she’d be looking at junior roles. Finally, you can’t give up after 20 applications, that’s nothing.