diff --git a/src/imageformats/avif.cpp b/src/imageformats/avif.cpp
index 4d3231d..16a790d 100644
--- a/src/imageformats/avif.cpp
+++ b/src/imageformats/avif.cpp
@@ -748,7 +748,7 @@ bool QAVIFHandler::write(const QImage &image)
         encoder->maxQuantizerAlpha = maxQuantizerAlpha;
     }
 
-    encoder->speed = 7;
+    encoder->speed = 6;
 
     res = avifEncoderWrite(encoder, avif, &raw);
     avifEncoderDestroy(encoder);