From Reporting, select the Dynamic Creative (DCO) reporting element from the Data dropdown. This will show a summary of DCO vs non-DCO ads.
To view the performance of individual Images, Videos and Ad Copy by themselves, select the desired breakdown from the Dynamic Creative (DCO) section. This data, provided by Facebook, is an indicator of individual image, video or ad copy strength in connection to the audience(s) selected for the Ad. This breakdown data cannot be combined with other DCO elements.
It should be noted that Facebook may optimize one element to a particular section of your audience, and another element to another section of your audience, so it is entirely possible to have good performance from all your creative elements in the DCO ad. In other words, Facebook does not merely select a single winning combination of display and text copy, but rather optimizes all combinations within your selected list of elements to all portions of your audience, so you may have several winning combinations in use for a single DCO ad.