I think this is an important point, if you look at the warmup run on [1] the Julia CSV readers are slower than many of the R and python packages . It makes the claims of 10-20x faster quite disengenuous in my opinion. A lot of data science work will only read the file on once per session and what these benchmarks actually suggest for that sort of work is not reflected in the title.
[1] https://www.queryverse.org/benchmarks/