Make Jotform main Mailchimp form

When I send newsletters and recipients open in browser, the subscribe
option is available and it is linked to Mailchimp's sign up form. I think
the double opt in is making me lose many potential subscribers, how do I

make my Jotform my main sign up form?

I am not really sure how you meant on your question. Can you reiterate so that we can provide you the appropriate suggestion/response as well.

You may also review first our user guide on : How-to-Integrate-with-MailChimp

There are further options that you can toggle in the integration configuration. Perhaps this is what you were looking for.

Let us know if still not resolve. We will wait for your response.

Thanks.