I have campaigns set up for a few home improvement companies and they're all set up with the same structure: one ad set and a few ads inside it (no interests, just broad targeting). On the first 2-3 days the campaigns do well getting 2-4 leads a day with a $50 a day budget. But after a few days, the campaign performance plummets. I've been doing some research and some people say it's because facebooks finding or targeting the wrong audience. How do I go about fixing this? Do I need several ad groups in one campaign? Is it just that I have to duplicate the campaign until performs well? Do I need a different campaign structure? What do you guys recommend? Thanks in advance