diff --git a/static/admin.html b/static/admin.html
index df054ee..10b1719 100644
--- a/static/admin.html
+++ b/static/admin.html
@@ -994,12 +994,12 @@
 
                 const startGpuMonitoring = () => {
                     if (gpuInterval) clearInterval(gpuInterval);
-                    // Use setTimeout to ensure DOM is ready after v-if switch
+                    // Use setTimeout to ensure DOM is ready after v-if switch (wait for slide-up transition ~700ms)
                     setTimeout(() => {
                         initGpuCharts();
                         fetchGpuStatus(); // Initial fetch
                         gpuInterval = setInterval(fetchGpuStatus, 2000); // Every 2s
-                    }, 300);
+                    }, 800);
                 };
 
                 const stopGpuMonitoring = () => {
@@ -1007,6 +1007,9 @@
                         clearInterval(gpuInterval);
                         gpuInterval = null;
                     }
+                    // Dispose charts to free memory and avoid resize issues on re-init
+                    if (gpuUtilChartInst) { gpuUtilChartInst.dispose(); gpuUtilChartInst = null; }
+                    if (gpuTempChartInst) { gpuTempChartInst.dispose(); gpuTempChartInst = null; }
                 };
 
                 const initGpuCharts = () => {
@@ -1051,11 +1054,20 @@
                         ]
                     });
                     
+                    // Explicitly resize to ensure correct rendering
+                    gpuUtilChartInst.resize();
+                    gpuTempChartInst.resize();
+
                     // Render initial data if available
                     updateGpuCharts();
                 };
 
                 const updateGpuCharts = () => {
+                    // Lazy init check
+                    if ((!gpuUtilChartInst || !gpuTempChartInst) && gpuUtilChartRef.value && gpuTempChartRef.value) {
+                        initGpuCharts();
+                    }
+
                     if (!gpuUtilChartInst || !gpuTempChartInst) return;
                     
                     const times = gpuHistory.value.map(h => h.time);