diff --git a/main.cpp b/main.cpp
index 0af68d0..21fa4e9 100644
--- a/main.cpp
+++ b/main.cpp
@@ -11,9 +11,6 @@ int main(int argc, char *argv[])
 	Window window;
 	window.show();
 
-	// call the window.timerEvent function every 40 ms
-	window.startTimer(40);
-
 	// execute the application
 	return app.exec();
 }
diff --git a/window.cpp b/window.cpp
index 5fdc971..86e52db 100644
--- a/window.cpp
+++ b/window.cpp
@@ -47,7 +47,10 @@ Window::Window()
 
     setLayout(hLayout);
 
-    fakeSensor.startms(5);
+    // a fake data sample every 10ms
+    fakeSensor.startms(10);
+    // Screen refresh every 40ms
+    startTimer(40);
 }
 
 Window::~Window() {