diff --git a/app/src/main/java/org/ntlab/irisclient/DrawingActivity.java b/app/src/main/java/org/ntlab/irisclient/DrawingActivity.java
index 06b0931..6935caf 100644
--- a/app/src/main/java/org/ntlab/irisclient/DrawingActivity.java
+++ b/app/src/main/java/org/ntlab/irisclient/DrawingActivity.java
@@ -63,7 +63,7 @@
             }
         });
         //タイマースタート呼び出し
-        drawingStateViewModel.start(5000);
+        drawingStateViewModel.start(500);
     }
 
     @Override