diff --git a/src/Gui/ProgressBar.cpp b/src/Gui/ProgressBar.cpp
index 67f1df74e1..ba5f2e83bd 100644
--- a/src/Gui/ProgressBar.cpp
+++ b/src/Gui/ProgressBar.cpp
@@ -215,11 +215,14 @@ void Sequencer::setValue(int step)
                 showRemainingTime();
         }
         else {
-            d->bar->setValue(step);
-            if (d->bar->isVisible())
-                showRemainingTime();
-            d->bar->resetObserveEventFilter();
-            qApp->processEvents();
+	    int elapsed = d->progressTime.restart();
+	    if (elapsed > 500) {
+	            d->bar->setValue(step);
+	            if (d->bar->isVisible())
+	                showRemainingTime();
+	            d->bar->resetObserveEventFilter();
+	            qApp->processEvents();
+	    }
         }
     }
 }