diff --git a/app/src/main/java/com/fongmi/android/tv/Constant.java b/app/src/main/java/com/fongmi/android/tv/Constant.java
index 9a24e9349..b080b9533 100644
--- a/app/src/main/java/com/fongmi/android/tv/Constant.java
+++ b/app/src/main/java/com/fongmi/android/tv/Constant.java
@@ -6,7 +6,7 @@ public class Constant {
     //控件隱藏時間
     public static final int INTERVAL_HIDE = 5 * 1000;
     //網路偵測間隔
-    public static final int INTERVAL_TRAFFIC = 500;
+    public static final int INTERVAL_TRAFFIC = 1000;
     //點播爬蟲時間
     public static final int TIMEOUT_VOD = 30 * 1000;
     //直播爬蟲時間
diff --git a/app/src/main/java/com/fongmi/android/tv/utils/Traffic.java b/app/src/main/java/com/fongmi/android/tv/utils/Traffic.java
index e115b4622..0213f7cd1 100644
--- a/app/src/main/java/com/fongmi/android/tv/utils/Traffic.java
+++ b/app/src/main/java/com/fongmi/android/tv/utils/Traffic.java
@@ -6,8 +6,11 @@ import android.widget.TextView;
 
 import com.fongmi.android.tv.App;
 
+import java.text.DecimalFormat;
+
 public class Traffic {
 
+    private static final DecimalFormat format = new DecimalFormat("#.0");
     private static final String UNIT_KB = " KB/s";
     private static final String UNIT_MB = " MB/s";
     private static long lastTotalRxBytes = 0;
@@ -24,14 +27,12 @@ public class Traffic {
     }
 
     private static String getSpeed() {
-        long total = TrafficStats.getTotalRxBytes() / 1024;
-        long time = System.currentTimeMillis();
-        long diff = (total - lastTotalRxBytes) * 1000;
-        long speed = diff / Math.max(time - lastTimeStamp, 1);
-        lastTimeStamp = time;
-        lastTotalRxBytes = total;
-        if (speed > 1000) return speed / 1000 + UNIT_MB;
-        else return speed + UNIT_KB;
+        long nowTotalRxBytes = TrafficStats.getTotalRxBytes() / 1024;
+        long nowTimeStamp = System.currentTimeMillis();
+        long speed = (nowTotalRxBytes - lastTotalRxBytes) * 1000 / Math.max(nowTimeStamp - lastTimeStamp, 1);
+        lastTimeStamp = nowTimeStamp;
+        lastTotalRxBytes = nowTotalRxBytes;
+        return speed < 1000 ? speed + UNIT_KB : format.format(speed / 1024f) + UNIT_MB;
     }
 
     public static void reset() {