diff --git a/av1/encoder/intra_mode_search.c b/av1/encoder/intra_mode_search.c
index 3b0ba23..25a6e2c 100644
--- a/av1/encoder/intra_mode_search.c
+++ b/av1/encoder/intra_mode_search.c
@@ -1098,7 +1098,7 @@
   double src_var = 0.0;
   double rec_var = 0.0;
   double var_diff = 0.0;
-  double threshold = 1.0 - (0.1 * cpi->oxcf.speed);
+  double threshold = 1.0 - (0.25 * cpi->oxcf.speed);
   unsigned int sse;
   int i, j;
   int right_overflow =