Looking at this chart is really interesting and matches the feeling I have with each language.
The number of pages I read in one session is not as much a mirror of how good or engrossing a book is, but rather how tiring or easy it is for me to read in this language. As such Japanese comes first because it’s by far the language I read the fastest. Traditional Chinese comes last because I get tired easily when reading it (like I feel like I’ve read 20 pages, but I only read 5? that kind of feeling…). And so necessary, Korean is somewhere in between.
However, the ranking for the number of days I actually opened the book between started and finished date is completely different. I think this data shows more reliably whether I loved the books or not. I usually read books I love every day, whereas I can stay weeks without opening the ones I don’t like as much, dragging the numbers down. Short stories are also the type of books I can put aside for several days so the data is not completely accurate of course. But still, Traditional Chinese comes first this time, and given that I have loved almost all the Taiwanese and the few Hong Kong novels I’ve read this year, I’m not surprised. Korean comes last, which is also not a surprise. I already said that but Korean mystery fiction is often hit or miss, and I regularly find myself with novels I don’t enjoy reading. Korean is also the language I have the most DNF though they’re not counted here. Japanese is quite high too,
Simplified Chinese doesn’t count because there’s not enough source, and I’ll mostly be reading wuxia novels with a fixed pace of one chapter per day anyway.