Hello,
Figure 1 shows the interface traffic statistics, including the number of packets sent and received by each interface. The displayed figure is based on interface statistics. The 60-minute statistics are averaged every 5 minutes, and then a point is added to obtain the chart.
https://support.huawei.com/hedex/hdx.do?docid=EDOC1100013380&id=sec_admin_dashboard_0005&lang=en

Figure 2 shows the traffic report. You queried the results of the latest 24 hours. The query results are aggregated every 5 minutes and then aggregated every 20minutes.
https://support.huawei.com/hedex/hdx.do?docid=EDOC1100013380&id=sec_admin_monitor_logrep_0066&lang=en

Therefore, the feedback results of the two figures are different because the generation mechanisms are different.