Not always. It depends. My story wasn’t reviewed until very recently right before it was shelved, and it was originally made as a contest entry last year (and hit ranks 100+ multiple times). They take their time with reviews, and typically review stories that climb in ranks and reads quickly, or that are by larger authors. That’s not always accurate either, though.
I’ve found that it depends on the genre your story is in, the retention it gets, and, of course, its rank. But even then, nothing’s consistent. I don’t think anyone outside of Episode staff really knows how the review process works 