There’s no magic bullet solution for this—got some good answers here addressing both your site copy and lack of clear messaging within. Visuals are also important! Homepages are kinda dead, do you have nice looking landing pages that are easy to read and navigate? Good UX?

People also hate the feeling they’re being sold to. What kind of value are you providing them that would make them want to sign up for your email list? Having enough good content out there that’s leading them to your site is important.

Let me know if you need help with the content bit: it gets overlooked in lead generation, and definitely provides the best value for your money.