diff --git a/av1/encoder/speed_features.c b/av1/encoder/speed_features.c
index 475cf3d..7ffcad6 100644
--- a/av1/encoder/speed_features.c
+++ b/av1/encoder/speed_features.c
@@ -1141,7 +1141,6 @@
     sf->inter_sf.prune_ext_comp_using_neighbors = 2;
     sf->inter_sf.prune_obmc_prob_thresh = INT_MAX;
     sf->inter_sf.disable_interinter_wedge_var_thresh = UINT_MAX;
-    sf->inter_sf.prune_nearest_near_mv_using_refmv_weight = boosted ? 0 : 1;
 
     sf->interp_sf.cb_pred_filter_search = 1;
     sf->interp_sf.skip_sharp_interp_filter_search = 1;
diff --git a/av1/encoder/speed_features.h b/av1/encoder/speed_features.h
index 13846bc..60efc14 100644
--- a/av1/encoder/speed_features.h
+++ b/av1/encoder/speed_features.h
@@ -920,6 +920,14 @@
   int prune_comp_using_best_single_mode_ref;
 
   // Skip NEARESTMV and NEARMV using weight computed in ref mv list population
+  // This speed feature sometimes leads to severe visual artifacts for
+  // the overlay frame. It makes inter RD mode search skip NEARESTMV
+  // and NEARMV, and no valid inter mode is evaluated when the NEWMV mode
+  // is also early terminated due to the constraint that it does not handle
+  // zero mv difference. In this cases, intra modes will be chosen, leading
+  // to bad prediction and flickering artifacts.
+  // Turn off this feature for now. Be careful to check visual quality if
+  // anyone is going to turn it on.
   int prune_nearest_near_mv_using_refmv_weight;
 
   // Based on previous ref_mv_idx search result, prune the following search.
diff --git a/test/horz_superres_test.cc b/test/horz_superres_test.cc
index 12e14dc..323aa93 100644
--- a/test/horz_superres_test.cc
+++ b/test/horz_superres_test.cc
@@ -56,7 +56,7 @@
     45.0 },
 #if CONFIG_AV1_HIGHBITDEPTH
   { "park_joy_90p_10_444.y4m", AOM_IMG_FMT_I44416, AOM_BITS_10, 1, 5, 0, 27.0,
-    48.0 },
+    47.9 },
 #endif
   { "screendata.y4m", AOM_IMG_FMT_I420, AOM_BITS_8, 0, 4, 1, 23.0, 56.0 },
   // Image coding (single frame).