diff --git a/webcam-capture/src/main/java/com/github/sarxos/webcam/WebcamUpdater.java b/webcam-capture/src/main/java/com/github/sarxos/webcam/WebcamUpdater.java
index b73e44ce..09516e47 100644
--- a/webcam-capture/src/main/java/com/github/sarxos/webcam/WebcamUpdater.java
+++ b/webcam-capture/src/main/java/com/github/sarxos/webcam/WebcamUpdater.java
@@ -194,7 +194,11 @@ public void run() {
 		long delta = t2 - t1 + 1; // +1 to avoid division by zero
 		long delay = Math.max((1000 / TARGET_FPS) - delta, 0);
 
-		fps = (4 * fps + 1000 / delta) / 5;
+		if (device instanceof WebcamDevice.FPSSource) {
+			fps = ((WebcamDevice.FPSSource) device).getFPS();
+		} else {
+			fps = (4 * fps + 1000 / delta) / 5;
+		}
 
 		// reschedule task