Ask HN: 1000+ visitors but 1 customer, how to get more conversions on your SaaS?

I have a saas, and I seem to gotten the hang of getting traffic to my site. However, the conversions remain low. Over 1000 people have viewed the website, ~400 users, 1 paying customer. How do I make this rate better? Any generalized tip that could apply here? For reference, my saas is a AI tool that assists in video production.

I have been not paying for marketing yet. I wanted to exhaust my options with free marketing on reddit, directories, etc., and optimize the conversion rate before I shell out money. Thank you in advance!