Oxygen Builder vs Divi Builder

Examining how Divi does with Google PageSpeed performance, you can see that mobile gets a 37 rating and desktop gets a 86 rating. According to the before scan it reported that I could save almost 3.8s by reducing unused JavaScript usage.   While the After scan still reports this as one of the opportunities for improvement, the estimated savings was only .85s. 

Of course Google's PageSpeed report for Desktop is always better than what gets reported on the mobile report.  According to the before report, I could save .64s by reducing the unused JavaScript. There are no opportunities showing for the after conversion Google PageSpeed report.

While I love the Divi Theme and what it can do, as a developer Oxygen Builder is starting to grow on me. The fact that it takes a lot of the bloat out of WordPress's theme system and has been optimized to return a good Google PageSpeed is really impressive.  Divi does give the end user a slightly easier environment to use but overall I have found that client's don't want to be editing their site. If the client is worried about Google PageSpeed and you want to have WordPress as a backend then I would lean towards Oxygen Builder.