diff --git a/db/Database.cpp b/db/Database.cpp
index 052f323fe..0446dd448 100644
--- a/db/Database.cpp
+++ b/db/Database.cpp
@@ -3,6 +3,7 @@
 #include "fmt/includes.h"
 
 #include <QFile>
+#include <QColor>
 
 namespace NekoRay {
 
@@ -99,6 +100,7 @@ namespace NekoRay {
         _add(new configItem("type", &type, itemType::string));
         _add(new configItem("id", &id, itemType::integer));
         _add(new configItem("gid", &gid, itemType::integer));
+        _add(new configItem("yc", &latency, itemType::integer));
 
         // 可以不关联 bean，只加载 ProxyEntity 的信息
         if (bean != nullptr) {
@@ -119,6 +121,22 @@ namespace NekoRay {
         }
     }
 
+    QColor ProxyEntity::DisplayLatencyColor() const {
+        if (latency < 0) {
+            return Qt::red;
+        } else if (latency > 0) {
+            if (latency < 100) {
+                return Qt::darkGreen;
+            } else if (latency < 200) {
+                return Qt::darkYellow;
+            } else {
+                return Qt::darkRed;
+            }
+        } else {
+            return {};
+        }
+    }
+
     // Profile
 
     int ProfileManager::NewProfileID() const {
diff --git a/db/ProxyEntity.hpp b/db/ProxyEntity.hpp
index ecb4c6305..b0f026a4a 100644
--- a/db/ProxyEntity.hpp
+++ b/db/ProxyEntity.hpp
@@ -27,18 +27,20 @@ namespace NekoRay {
 
         int id = -1;
         int gid = 0;
+        int latency = 0;
         QSharedPointer<fmt::AbstractBean> bean;
         QSharedPointer<traffic::TrafficData> traffic_data = QSharedPointer<traffic::TrafficData>(
                 new traffic::TrafficData(""));
 
         // Cache
-        int latency = 0;
         QString full_test_report;
 
         ProxyEntity(fmt::AbstractBean *bean, QString _type);
 
         [[nodiscard]] QString DisplayLatency() const;
 
+        [[nodiscard]] QColor DisplayLatencyColor() const;
+
         [[nodiscard]] fmt::ChainBean *ChainBean() const {
             return (fmt::ChainBean *) bean.get();
         };
diff --git a/ui/mainwindow.cpp b/ui/mainwindow.cpp
index 09ab2da0a..327fa4dfa 100644
--- a/ui/mainwindow.cpp
+++ b/ui/mainwindow.cpp
@@ -752,8 +752,13 @@ void MainWindow::refresh_proxy_list_impl(const int &id, NekoRay::GroupSortAction
 
         // C4: Test Result
         f = f0->clone();
-        f->setText(profile->DisplayLatency());
-        if (!profile->full_test_report.isEmpty()) f->setText(profile->full_test_report);
+        if (profile->full_test_report.isEmpty()) {
+            auto color = profile->DisplayLatencyColor();
+            if (color.isValid()) f->setForeground(color);
+            f->setText(profile->DisplayLatency());
+        } else {
+            f->setText(profile->full_test_report);
+        }
         ui->proxyListTable->setItem(row, 4, f);
 
         // C5: Traffic
@@ -1072,6 +1077,7 @@ void MainWindow::on_menu_clear_test_result_triggered() {
         if (NekoRay::dataStore->current_group != profile->gid) continue;
         profile->latency = 0;
         profile->full_test_report = "";
+        profile->Save();
     }
     refresh_proxy_list();
 }
diff --git a/ui/mainwindow_grpc.cpp b/ui/mainwindow_grpc.cpp
index 345d72c3e..c21c902a6 100644
--- a/ui/mainwindow_grpc.cpp
+++ b/ui/mainwindow_grpc.cpp
@@ -148,6 +148,7 @@ void MainWindow::speedtest_current_group(int mode) {
                     profile->latency = result.ms();
                     if (profile->latency == 0) profile->latency = -1; // sn
                     profile->full_test_report = result.full_report().c_str();
+                    profile->Save();
 
                     runOnUiThread([=] {
                         if (!result.error().empty()) {