diff --git a/examples/simple_graph/simple_graph.py b/examples/simple_graph/simple_graph.py
index ab79929..4b63530 100644
--- a/examples/simple_graph/simple_graph.py
+++ b/examples/simple_graph/simple_graph.py
@@ -32,7 +32,7 @@
 
         # Slowly vary the frequency for a more dynamic visualization
         frequency = 1.0 + 0.5 * math.sin(time.time() / 5.0)
-        time.sleep(1)
+        time.sleep(0.1)
 
 except KeyboardInterrupt:
     print("Exiting...")
diff --git a/examples/simple_graph/simple_graph_panel.py b/examples/simple_graph/simple_graph_panel.py
index 6fde157..266a34a 100644
--- a/examples/simple_graph/simple_graph_panel.py
+++ b/examples/simple_graph/simple_graph_panel.py
@@ -56,4 +56,4 @@
 }
 
 # Display the chart
-st_echarts(options=options, height="400px")
+st_echarts(options=options, height="400px", key="graph")