diff --git a/src/main/java/lab/App.java b/src/main/java/lab/App.java
index ce7b88348cbc4bb99ccce807e24e61938cc480d9..210b19fff7db7570d4cba390ad44ff328fde7445 100644
--- a/src/main/java/lab/App.java
+++ b/src/main/java/lab/App.java
@@ -52,8 +52,8 @@ public class App extends Application {
 	private void drawScene() {
 		//graphic context is used for a painting
 		GraphicsContext gc = canvas.getGraphicsContext2D();
-		int timeout = 200;
-		while (Routines.isEndOfThreadRequestedByJavaVM()) {
+		int timeout = 10;
+		while (!Routines.isEndOfThreadRequestedByJavaVM()) {
 			Routines.sleep(timeout);
 			double deltaT = timeout / 1000.;
 		}