Getting the most out of your traffic can take time. You need to analyze your ad’s results based on a span of a few days, instead of focusing on daily earnings. It is very possible that while one day, eCPMs may be sky high, the next they’ll be a bit lower. This doesn’t mean the platform is failing; in fact, it means the platform is analyzing your traffic in order to generate better overall results. Bottom line, have a little patience before evaluating results and trends.