When you prepare for a voiceover job or audition, it's essential to pay attention to the instruction on the copy. If this is a commercial, the project was likely planned carefully at an advertising agency. Every commercial has a marketing objective. Our job as voice actors is to sell it and make it sound convincing.
Some ad copy will present a problem at the beginning of the script and end with a solution. For example, many PSA's are composed this way. They being with a rather despondent
message, but towards the end, it's all about how they're making progress