diff --git a/ChangeLog.txt b/ChangeLog.txt
index 87349a4a..4236dfe0 100644
--- a/ChangeLog.txt
+++ b/ChangeLog.txt
@@ -7,8 +7,8 @@ compatible with X Video.)  Also, the decompress-to-YUV function has been
 extended to support image scaling.
 
 [2] Added SIMD acceleration for DSPr2-capable MIPS platforms.  This speeds up
-the compression of full-color JPEGs by 6-21% on such platforms and
-decompression by 6-17%.
+the compression of full-color JPEGs by 70-80% on such platforms and
+decompression by 25-35%.
 
 [3] Added support for 4:1:1 subsampling to the TurboJPEG API.  This is mainly
 included for compatibility, since 4:1:1 is not fully accelerated in