Quality Management Scoring Discrepancy in Performance Dashboard

Could someone explain the calculation logic for the Quality Management score in the Performance dashboard? We are observing a mismatch between the dashboard metric and the WFM adherence report for the Paris team. The flow configuration below is standard, yet scores differ by 15%.

flow_id: 8821a
qc_version: 2.1
region: EU-West

Is there a known latency issue in data propagation?