diff --git a/src/App.vue b/src/App.vue
index 0be9a15..98c0518 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -42,10 +42,9 @@ provide('currentTime', currentTime);
  */
 function refreshTime() {
   currentTime.value = Date.now();
-  setTimeout(() => {
-    refreshTime();
-  }, 1000);
+  window.requestAnimationFrame(refreshTime);
 }
+refreshTime();
 
 // 是否为Windows系统
 const isWindows = /windows|win32/i.test(navigator.userAgent);
diff --git a/src/components/charts/line.js b/src/components/charts/line.js
index 5abcf89..f2c2ffe 100644
--- a/src/components/charts/line.js
+++ b/src/components/charts/line.js
@@ -18,11 +18,13 @@ use([
   DataZoomComponent,
 ]);
 
-export default (
-  dateList,
-  valueList,
-  mode = 'dark',
-) => {
+export default (options) => {
+  const {
+    dateList,
+    valueList,
+    mode = 'dark',
+    connectNulls = true,
+  } = options || {};
   const fontFamily = config.nazhua.disableSarasaTermSC === true ? undefined : 'Sarasa Term SC';
   const option = {
     darkMode: mode === 'dark',
@@ -36,7 +38,7 @@ export default (
         let res = `<p style="font-weight: bold; color: #ff6;">${time}</p>`;
         if (params.length < 10) {
           params.forEach((i) => {
-            res += `${i.marker} ${i.seriesName}: ${i.value[1]}ms<br>`;
+            res += i.value[1] ? `${i.marker} ${i.seriesName}: ${i.value[1]}ms<br>` : '';
           });
         } else {
           res += '<table>';
@@ -45,7 +47,9 @@ export default (
             if (index % 2 === 0) {
               res += '<tr>';
             }
-            res += `<td style="padding: 0 4px;">${i.marker} ${i.seriesName}: ${i.value[1]}ms</td>`;
+            res += i.value[1]
+              ? `<td style="padding: 0 4px;">${i.marker} ${i.seriesName}: ${i.value[1]}ms</td>`
+              : '<td style="padding: 0 4px;"></td>';
             if (index % 2 === 1) {
               res += '</tr>';
               trEnd = true;
@@ -108,7 +112,7 @@ export default (
       ...i,
       type: 'line',
       smooth: true,
-      connectNulls: true,
+      connectNulls,
       legendHoverLink: false,
       symbol: 'none',
     })),
diff --git a/src/components/charts/line.vue b/src/components/charts/line.vue
index 3d8d997..f9d1297 100644
--- a/src/components/charts/line.vue
+++ b/src/components/charts/line.vue
@@ -38,15 +38,20 @@ const props = defineProps({
     type: [Number, String],
     default: null,
   },
+  connectNulls: {
+    type: [Boolean, String],
+    default: true,
+  },
 });
 
 const chartRef = ref();
 const option = computed(() => {
   if (props.dateList && props.valueList) {
-    return lineChart(
-      props.dateList,
-      props.valueList,
-    );
+    return lineChart({
+      dateList: props.dateList,
+      valueList: props.valueList,
+      connectNulls: props.connectNulls,
+    });
   }
   return null;
 });
diff --git a/src/views/components/server-detail/server-monitor.vue b/src/views/components/server-detail/server-monitor.vue
index 83e454b..dc493c7 100644
--- a/src/views/components/server-detail/server-monitor.vue
+++ b/src/views/components/server-detail/server-monitor.vue
@@ -118,10 +118,10 @@
                     {{ cateItem.avg }}ms
                   </span>
                   <span
-                    v-else
-                    class="cate-avg-ms"
+                    v-if="cateItem.over !== 0"
+                    class="cate-over-rate"
                   >
-                    -ms
+                    {{ cateItem.over }}%
                   </span>
                 </div>
               </template>
@@ -131,6 +131,7 @@
             :date-list="monitorChartData.dateList"
             :value-list="[monitorChartData.valueList[index]]"
             :size="240"
+            :connect-nulls="false"
           />
         </div>
       </div>
@@ -168,12 +169,6 @@
                 >
                   {{ cateItem.avg }}ms
                 </span>
-                <span
-                  v-else
-                  class="cate-avg-ms"
-                >
-                  -ms
-                </span>
               </div>
             </template>
           </popover>
@@ -183,6 +178,7 @@
       <line-chart
         :date-list="monitorChartData.dateList"
         :value-list="monitorChartData.valueList"
+        :connect-nulls="false"
       />
     </template>
   </dot-dot-box>
@@ -263,8 +259,9 @@ const monitorChartType = computed(() => {
   return config.nazhua.monitorChartType;
 });
 
-const now = ref(Date.now());
-const accpetShowTime = computed(() => now.value - (minute.value * 60 * 1000));
+// 服务器时间（后面来自接口）
+const nowServerTime = computed(() => store.state.serverTime || Date.now());
+const accpetShowTime = computed(() => (Math.floor(nowServerTime.value / 60000) - minute.value) * 60000);
 
 const minuteActiveArrowStyle = computed(() => {
   const index = minutes.findIndex((i) => i.value === minute.value);
@@ -302,13 +299,25 @@ const monitorChartData = computed(() => {
       };
     }
     const showAvgDelay = [];
-    const showCreateTime = i.created_at.filter((o, index) => {
+    const showCreateTime = [];
+    const accpeTimeMap = {};
+    i.created_at.forEach((o, index) => {
       const status = o >= accpetShowTime.value;
       if (status) {
-        showAvgDelay.push(i.avg_delay[index]);
+        accpeTimeMap[o] = i.avg_delay[index];
       }
-      return status;
     });
+    const allMintues = Math.floor((Date.now() - accpetShowTime.value) / 60000);
+    for (let j = 0; j < allMintues; j += 1) {
+      const time = accpetShowTime.value + j * 60000;
+      showCreateTime.push(time);
+      const timeProp = accpeTimeMap[time];
+      if (timeProp) {
+        showAvgDelay.push(timeProp);
+      } else {
+        showAvgDelay.push(null);
+      }
+    }
     const {
       threshold,
       mean,
@@ -316,19 +325,21 @@ const monitorChartData = computed(() => {
       min,
     } = peakShaving.value ? getThreshold(showAvgDelay, 2) : {};
     showCreateTime.forEach((o, index) => {
-      if (dateMap[o]) {
+      if (Object.prototype.hasOwnProperty.call(dateMap, o)) {
         return;
       }
       const avgDelay = showAvgDelay[index];
       if (peakShaving.value) {
         if (avgDelay === 0) {
+          dateMap[o] = null;
           return;
         }
         if (Math.abs(avgDelay - mean) > threshold && max / min > 2) {
+          dateMap[o] = null;
           return;
         }
       }
-      dateMap[o] = (avgDelay).toFixed(2) * 1;
+      dateMap[o] = avgDelay ? (avgDelay).toFixed(2) * 1 : null;
     });
   });
   let dateList = [];
@@ -351,9 +362,9 @@ const monitorChartData = computed(() => {
         showCates.value[id] = true;
       }
       // 计算平均延迟和成功率
-      const validAvgs = avgs.filter((a) => a[1] !== 0);
+      const validAvgs = avgs.filter((a) => a[1] !== 0 && a[1] !== null);
       const avg = validAvgs.reduce((a, b) => a + b[1], 0) / validAvgs.length;
-      const over = avgs.filter((a) => a[1] !== 0).length / avgs.length;
+      const over = avgs.filter((a) => a[1] !== 0 && a[1] !== null).length / avgs.length;
       const cateItem = {
         id,
         name: i,
@@ -384,8 +395,7 @@ const monitorChartData = computed(() => {
       });
     }
   });
-  // 去重
-  dateList = Array.from(new Set(dateList)).sort((a, b) => a - b);
+  dateList = dateList.sort((a, b) => a - b);
   valueList = valueList.filter((i) => showCates.value[i.id]);
   return {
     dateList,
@@ -410,7 +420,6 @@ function switchChartType() {
 }
 
 function toggleMinute(value) {
-  now.value = store.state.serverTime || Date.now();
   minute.value = value;
 }
 
@@ -454,7 +463,6 @@ async function loadMonitor() {
   }).catch((err) => {
     console.error(err);
   });
-  now.value = store.state.serverTime || Date.now();
 }
 
 let loadMonitorTimer = null;
@@ -539,8 +547,15 @@ onUnmounted(() => {
       color: #fff;
     }
 
+    .cate-over-rate {
+      height: var(--cate-item-height);
+      line-height: calc(var(--cate-item-height) + 2px);
+      text-align: right;
+      color: #fffbd8;
+    }
+
     &.disabled {
-      filter: grayscale(1);
+      filter: grayscale(1) brightness(0.8);
       opacity: 0.5;
     }
   }
diff --git a/src/views/composable/server-monitor.js b/src/views/composable/server-monitor.js
index 0d62c1a..71a2ba1 100644
--- a/src/views/composable/server-monitor.js
+++ b/src/views/composable/server-monitor.js
@@ -11,15 +11,15 @@ import uniqolor from 'uniqolor';
  */
 export function getThreshold(data, tolerance = 2) {
   // 计算数据的平均值
-  const mean = data.reduce((sum, value) => sum + value, 0) / data.length;
+  const mean = data.reduce((sum, value) => sum + (value || 0), 0) / data.length;
   // 计算数据的方差
-  const variance = data.reduce((sum, value) => sum + (value - mean) ** 2, 0) / data.length;
+  const variance = data.reduce((sum, value) => sum + ((value || 0) - mean) ** 2, 0) / data.length;
   // 计算标准差
   const stdDev = Math.sqrt(variance);
   // 计算阈值
   const threshold = tolerance * stdDev;
   // 过滤掉值为0的数据
-  const filteredData = data.filter((value) => value !== 0);
+  const filteredData = data.filter((value) => value !== 0 && value !== null);
   // 计算过滤后数据的最小值
   const min = Math.min(...filteredData);
   // 计算过滤后数据的最大值