diff --git a/main.py b/main.py
index e9558a9..eaedc77 100644
--- a/main.py
+++ b/main.py
@@ -247,7 +247,7 @@ async def update_latest_data():
             current_data = latest_data[f"PU_{pu}"]
             logging.debug(f"[MONITOR BUFFER] PU{pu}: {current_data}")
         # logging.info(f"[MONITOR BUFFER] latest_data: {latest_data}")
-        await asyncio.sleep(0.1)
+        await asyncio.sleep(0.05)
 
 
 @app.get("/monitor")
@@ -348,7 +348,7 @@ async def record_data_loop():
             recording_file.flush()
             last_flush_time = datetime.datetime.now()
 
-        await asyncio.sleep(0.1)  # 10 Hz
+        await asyncio.sleep(0.05)  # 10 Hz
 
 ## AUTOMATIC TESTING
 
diff --git a/static/multi_pu_dashboard.html b/static/multi_pu_dashboard.html
index 364551a..cc2188a 100644
--- a/static/multi_pu_dashboard.html
+++ b/static/multi_pu_dashboard.html
@@ -67,6 +67,8 @@ function initAllPlots() {
       xaxis: { title: 'Time', type: 'date' },
       yaxis: { title: plot.id.includes('P') ? 'Pressure (bar)' : 'Flow (L/h)' },
     };
+
+    // Add ref line if present
     if (plot.ref !== undefined) {
       data.push({
         x: [time0[0], time0[0]],
@@ -77,9 +79,23 @@ function initAllPlots() {
         showlegend: true
       });
     }
+
+    // Add QSkid trace only for Qperm plot
+    if (plot.id === 'Qperm-plot') {
+      data.push({
+        x: time0.slice(),
+        y: zero.slice(),
+        name: 'QSkid',
+        mode: 'lines',
+        line: { color: 'black', width: 2, dash: 'dot' },
+        legendgroup: 'PatientSkid'
+      });
+    }
+
     Plotly.newPlot(plot.id, data, layout);
   });
 }
+
 async function updateAllPlots() {
   try {
     const res = await fetch('/monitor');
@@ -110,6 +126,16 @@ async function updateAllPlots() {
           y: [[plot.ref]]
         }, [puList.length], maxPoints); // the ref line is always the last trace
       }
+
+      // Extend PatientSkid.QSkid only for Qperm plot
+      if (plot.id === 'Qperm-plot') {
+        const qSkid = SkidData["QSkid"];
+        const skidX = [[timestamp]];
+        const skidY = [[qSkid !== undefined ? qSkid : null]];
+        const qSkidTraceIndex = puList.length + (plot.ref !== undefined ? 1 : 0); // last trace index
+        Plotly.extendTraces(plot.id, { x: skidX, y: skidY }, [qSkidTraceIndex], maxPoints);
+      }
+
     });
   } catch (err) {
     console.error("Failed to update plots:", err);