bugfix and performance improvements

src/views/admin/agent/index.vue

@@ -1,7 +1,7 @@
 <script setup>
 import StatisticsPanel from "@/views/components/StatisticsPanel.vue";
 import { getBrokerStatistic } from "@/api/admin/agent/home";
-import { ref } from "vue";
+import { computed, ref } from "vue";
 import { useI18n } from "vue-i18n";
 
 const { t } = useI18n();