Since 1st tracking
Costs > $20
Facebook quick filter
Filter by ROI asc.
Get the top 5-10 unique adsets with the lowest ROI.
Pull out the filter window and type those adsets in the term filter so you can see only those adset's results.
Click on the customer journey icon.
The bars tell why, the ROI tells how well, the adset tells who, the rev tells how much.
Make note of the adsets and see what ads you have run against them so you can turn them off, or test a new ad , or test an ad that has the intent that is for a different part of the cusotmer journey, or the correct ad intent for where that adset is in your customer journey.
Lousy adsets might just be lousy. But they also might be the victim of being shown ads that don't match where they are in your sales lifecycle.
If the adset is cold traffic, show them your best branding/content ad, and/or lead gen ad, before giving up on it.
Additionally, click on the benchmark icon for that row. Pick the attribution model / intent, and you vs. yourself benchmark. See how this row's performance compares against your past.