Not just yet—after only one day, it’s too early to make any big decisions. Here’s what you should do instead:
1) Keep all ad sets running for at least 3–5 days
Facebook needs time to optimize and exit the learning phase.
Performance can fluctuate heavily in the first 24–72 hours.
2) Don’t turn off the underperforming ad sets just yet
One day of data isn't enough to accurately judge them.
They may just need more time or impressions to convert.
3) Hold off on increasing budget for now
Let the winning ad set stabilize.
If it continues to perform consistently after 3+ days, then scale gradually (e.g., 20–30% increase every 2–3 days).
Track cost per result, CTR, and CPM across all ad sets—not just purchases—to get a better sense of what's working or needs testing.