diff --git a/src/Qt/AudioPlaybackThread.cpp b/src/Qt/AudioPlaybackThread.cpp
index 587743fea..10f6c7518 100644
--- a/src/Qt/AudioPlaybackThread.cpp
+++ b/src/Qt/AudioPlaybackThread.cpp
@@ -267,7 +267,7 @@ namespace openshot
 				audioInstance->audioDeviceManager.addAudioCallback(&player);
 
 				// Create TimeSliceThread for audio buffering
-				time_thread.startThread();
+				time_thread.startThread(Priority::high);
 
 				// Connect source to transport
 				transport.setSource(
diff --git a/src/Qt/PlayerPrivate.cpp b/src/Qt/PlayerPrivate.cpp
index 2998e3ee6..222bfd5e9 100644
--- a/src/Qt/PlayerPrivate.cpp
+++ b/src/Qt/PlayerPrivate.cpp
@@ -49,7 +49,7 @@ namespace openshot
 
         // Start the threads
         if (reader->info.has_audio)
-            audioPlayback->startThread(Priority::highest);
+            audioPlayback->startThread(Priority::high);
         if (reader->info.has_video) {
             videoCache->startThread(Priority::high);
             videoPlayback->startThread(Priority::high);
@@ -179,7 +179,7 @@ namespace openshot
         if (video_position < 0) return false;
 
         stopPlayback();
-        startThread(Priority::normal);
+        startThread(Priority::high);
         return true;
     }