Not that I am the best person to advise you on how to pitch to investors (I run what is disparagingly called a lifestyle business by the VCs), but my experience in pitching in general is to try and look at the pitch from the perspective of the investor. They worry about two things: 1. How are you going to make them money (the 100x return). 2. How are you going to minimise their risk. Your actual technology is almost of no importance.

You need to structure your pitch around these two questions. Go through your deck and make sure every slide and every bullet point is answering the two critical questions. Anything that doesn't answer these questions needs to removed or changed.