Outbound Campaign Dial Ratio Fluctuation During Peak WFM Hours

Quick question about outbound dialing efficiency dropping when WFM schedules publish.

Campaign ID: CAM-9982
Environment: Genesys Cloud Public (US-East)
Timezone: America/Chicago

Dial ratios spike to 4.0 at 08:00 CST but plummet to 1.2 during the 14:00-16:00 CST window. Agent availability seems correct in WFM. Is the outbound engine throttling based on predicted adherence scores rather than raw availability?