Earlier quoted context omitted.
Why should you compromise on security because you're impatient? Have the voter vote on paper; since it's only two candidates, this can be postcard-sized. Scan the postcards for the fast results, check and double check by hand (or visual if there's a picture taken by the scanner).
There were 22 different races to vote on in my ballot yesterday. Are you suggesting only hand count the presidential election then tally all the rest digitally?
I would expect one ballot paper per vote (based on rare occasion of doing two at once) to ensure the count is simple and accurate.
They make the ballots different colours to ensure you put them in the correct boxes iirc