Critique Converting Salespage

This request is not uniquely related to copywriting but the salesflow in general. I'm looking for some suggestions for VortexCreators.
Several sales are happening every day with 100-200 unique visitors. But there is no lead capturing so there is also a lot of waste happening.
Should we make the main page a lead capture page that leads to the salespage or collect leads on the salespage with something like popupdomination?
And then of course the copywriting. Is it compelling? Too generic? Would adding an instruction for entering their credit card information on the next page help them stepping into the unknown? Because the people who make it there convert very well.
Oh, and we don't have an upsell yet which is again wasted potential. Hmm...any ideas there?
Thanks for your expertise. Any constructive advice is much appreciated.
Philipp
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