diff --git a/rtengine/simpleprocess.cc b/rtengine/simpleprocess.cc
index 29f807df9..8cb8a7a7f 100644
--- a/rtengine/simpleprocess.cc
+++ b/rtengine/simpleprocess.cc
@@ -737,7 +737,12 @@ void batchProcessingThread (ProcessingJob* job, BatchProcessingListener* bpl, bo
 void startBatchProcessing (ProcessingJob* job, BatchProcessingListener* bpl, bool tunnelMetaData) {
 
     if (bpl)
+#if __GNUC__ == 4 && __GNUC_MINOR__ >= 8 && defined( WIN32 ) && defined(__x86_64__)
+		// See Issue 2384 "Very bad response time on win7/64 using gcc 4.8 when queue is running"
+        Glib::Thread::create(sigc::bind(sigc::ptr_fun(batchProcessingThread), job, bpl, tunnelMetaData), 0, true, true, Glib::THREAD_PRIORITY_NORMAL);
+#else
         Glib::Thread::create(sigc::bind(sigc::ptr_fun(batchProcessingThread), job, bpl, tunnelMetaData), 0, true, true, Glib::THREAD_PRIORITY_LOW);
+#endif
     
 }
 
diff --git a/rtgui/bqentryupdater.cc b/rtgui/bqentryupdater.cc
index 17e509315..8f7abb643 100644
--- a/rtgui/bqentryupdater.cc
+++ b/rtgui/bqentryupdater.cc
@@ -68,8 +68,14 @@ void BatchQueueEntryUpdater::process (guint8* oimg, int ow, int oh, int newh, BQ
         stopped = false;
         tostop  = false;
 
-        #undef THREAD_PRIORITY_LOW
-        thread = Glib::Thread::create(sigc::mem_fun(*this, &BatchQueueEntryUpdater::processThread), (unsigned long int)0, true, true, Glib::THREAD_PRIORITY_LOW);
+#if __GNUC__ == 4 && __GNUC_MINOR__ >= 8 && defined( WIN32 ) && defined(__x86_64__)
+		#undef THREAD_PRIORITY_NORMAL
+		// See Issue 2384 comment #3
+		thread = Glib::Thread::create(sigc::mem_fun(*this, &BatchQueueEntryUpdater::processThread), (unsigned long int)0, true, true, Glib::THREAD_PRIORITY_NORMAL);
+#else
+		#undef THREAD_PRIORITY_LOW
+		thread = Glib::Thread::create(sigc::mem_fun(*this, &BatchQueueEntryUpdater::processThread), (unsigned long int)0, true, true, Glib::THREAD_PRIORITY_LOW);
+#endif
     }
 }
 
diff --git a/rtgui/filebrowserentry.cc b/rtgui/filebrowserentry.cc
index 772bba732..1bcb75648 100644
--- a/rtgui/filebrowserentry.cc
+++ b/rtgui/filebrowserentry.cc
@@ -204,7 +204,11 @@ void FileBrowserEntry::updateImage (rtengine::IImage8* img, double scale, rtengi
     param->img = img;
     param->scale = scale;
     param->cropParams = cropParams;
+#if __GNUC__ == 4 && __GNUC_MINOR__ >= 8 && defined( WIN32 ) && defined(__x86_64__)
+    g_idle_add_full (G_PRIORITY_DEFAULT, updateImageUI, param, NULL);
+#else
     g_idle_add_full (G_PRIORITY_LOW, updateImageUI, param, NULL);
+#endif
 }
 
 void FileBrowserEntry::_updateImage (rtengine::IImage8* img, double s, rtengine::procparams::CropParams cropParams) {
diff --git a/rtgui/thumbimageupdater.cc b/rtgui/thumbimageupdater.cc
index ed9858ba6..d8687e9ad 100644
--- a/rtgui/thumbimageupdater.cc
+++ b/rtgui/thumbimageupdater.cc
@@ -70,9 +70,7 @@ public:
 	{
 		int threadCount=1;
 		#ifdef _OPENMP
-		  #ifndef WIN32	// see Issue 2370
 			threadCount=omp_get_num_procs();
-		  #endif
 		#endif
 		
 		threadPool_=new Glib::ThreadPool(threadCount,0);