Turn off SmartLogic, switch to manual bidding, whitelist only your proven placements, cap bids on everything else, and shift budget based on conversion data not spend.
I usually monitor the Publisher Report daily and block junk sites immediately. I also create a separate whitelist campaign to force the budget onto my best-performing placements. Typically, if a site gets 20–50 clicks with zero conversions, I cut it right away rather than letting SmartLogic waste more budget.
in my experience smartlogic do this alot, it just push budget to where it get cheap clicks not real conversions, so what i did i turn off smart algo or switch to manual bidding if option there, then i create strict whitelist campaign only and pause blacklist all junk sites, also reduce budget on main campaign so it stop wasting, after that slowly scale whitelist placements only, takes time but works better than trusting their “smart” thing blindly.
