For what it is worth, the slow approach tends to produce better outcomes than the volume one — it took me longer than it should have to work that out. How do you search dating sites effectively to find people with the exact same hobbies?
A short bio with one real hook outperforms three paragraphs — others here may have had a different experience.
Having tried a few, most matches go nowhere and that is normal rather than a failure — happy to be argued with on that one.