diff --git a/dlls/winegstreamer/gstdemux.c b/dlls/winegstreamer/gstdemux.c
index 11ca8f90bb0..8f89935b82b 100644
--- a/dlls/winegstreamer/gstdemux.c
+++ b/dlls/winegstreamer/gstdemux.c
@@ -1022,6 +1022,9 @@ static void init_new_decoded_pad(GstElement *bin, GstPad *pad, struct gstdemux *
             goto out;
         }
 
+        /* Avoid expensive color matrix conversions. */
+        gst_util_set_object_arg(G_OBJECT(vconv), "matrix-mode", "none");
+
         /* GStreamer outputs RGB video top-down, but DirectShow expects bottom-up. */
         if (!(flip = gst_element_factory_make("videoflip", NULL)))
         {