diff --git a/src/pages/TelemetryView/MonitoringColumn.jsx b/src/pages/TelemetryView/MonitoringColumn.jsx
index 91ef8ed..fab0fc3 100644
--- a/src/pages/TelemetryView/MonitoringColumn.jsx
+++ b/src/pages/TelemetryView/MonitoringColumn.jsx
@@ -19,6 +19,14 @@ const GetLimitShape = (flowChartData, points, accessor) => {
   return min.concat(max.reverse()) ?? []
 }
 
+const RemoveSimilar = (input) => {
+  const data = [input[0]]
+  for (let i = 1; i < input.length; i++)
+    if (input[i].y !== input[i - 1].y)
+      data.push(input[i])
+  return data
+}
+
 export const MonitoringColumn = ({ lineGroup, data, flowChartData, interval, showBorder, style, headerHeight, pointCount }) => {
   const [lineGroupWithoutShapes, setLineGroupWithoutShapes] = useState([])
   const dataLast = data?.[data.length - 1]
@@ -31,16 +39,20 @@ export const MonitoringColumn = ({ lineGroup, data, flowChartData, interval, sho
   }))
 
   const postParsing = (data) => {
-    if (flowChartData) {
-      lineGroupWithoutShapes.forEach(lineCfg => {
-        const lineDataSet = GetOrCreateDatasetByLineConfig(data.data, lineCfg)
+    lineGroupWithoutShapes.forEach(lineCfg => {
+      const lineDataSet = GetOrCreateDatasetByLineConfig(data.data, lineCfg)
 
+      lineDataSet.data = RemoveSimilar(lineDataSet.data)
+      if (lineDataSet.data.length > pointCount)
+        lineDataSet.data.splice(0, pointCount - lineDataSet.data.length)
+
+      if (flowChartData) {
         lineGroup.filter(cfg => cfg.isShape && cfg.xAccessorName === lineCfg.xAccessorName).forEach(areaCfg => {
           const dataset = GetOrCreateDatasetByLineConfig(data.data, areaCfg)
           dataset.data = GetLimitShape(flowChartData, lineDataSet.data, areaCfg.xAccessorName)
         })
-      })
-    }
+      }
+    })
   }
 
   useEffect(() => {
@@ -68,7 +80,6 @@ export const MonitoringColumn = ({ lineGroup, data, flowChartData, interval, sho
           yDisplay={false}
           yStart={yStart}
           savePreviousData={true}
-          pointCount={pointCount}
         />
       </div>
       <ChartTimeOnlineFooter data={dataLast} lineGroup={lineGroup} />