Olga has several line items under her campaign.Two of the line items are under delivering and not meeting performance goals,while two are high-performing.Which of the following is the recommended optimization strategy?

The recommended strategy is to shift budget from underperforming line items to high-performing ones. This allows the campaign to allocate resources more efficiently, maximizing overall performance by investing in what is already working well and scaling effectively. Increasing frequency caps on underperforming line items would likely waste budget on ineffective impressions, while decreasing them would further reduce their already poor delivery, neither of which addresses the core issue of underperformance. The goal is to optimize for success, not to force delivery on failing strategies.