Some draft investor pitches I receive dive straight into the nuts and bolts of running the company, business model options, and roll out strategies.
But maybe it is better to first take the time to explain what your idea actually is. It may sound boring and obvious to you, but someone who has not spent the last 2 years working alongside you, these 10 minutes of explanation are a good investment.
Issues that are hugely important to you such as conversion rates, customer acquisition cost, go-to-market analysis can wait until you have managed to communicate what you are doing, what problem you are solving.