Facebook ads sometimes perform well at the beginning, then results slowly drop after a few days. One reason is audience fatigue. This means the same people see the same ad many times and begin to ignore it. Another reason is competition. Other advertisers may start showing similar ads to the same audience, which can reduce attention. Ad images and text can also lose impact after repeated views. Refreshing the ad design or changing the audience can help restore interest. What methods do others use to keep Facebook ads performing longer?