diff --git a/src/libslic3r/PrintConfig.cpp b/src/libslic3r/PrintConfig.cpp
index 7bd31ddd51..3923529f0d 100644
--- a/src/libslic3r/PrintConfig.cpp
+++ b/src/libslic3r/PrintConfig.cpp
@@ -806,7 +806,7 @@ void PrintConfigDef::init_fff_params()
     def->category = L("Speed");
     def->tooltip = L("Enable this option to slow printing down in areas where potential curled perimeters may exist");
     def->mode = comAdvanced;
-    def->set_default_value(new ConfigOptionBool{ true });
+    def->set_default_value(new ConfigOptionBool{ false });
 
     def = this->add("overhang_1_4_speed", coFloatOrPercent);
     def->label = "(10%, 25%)";
diff --git a/src/slic3r/GUI/ConfigManipulation.cpp b/src/slic3r/GUI/ConfigManipulation.cpp
index 52a9f5d95e..59ec829491 100644
--- a/src/slic3r/GUI/ConfigManipulation.cpp
+++ b/src/slic3r/GUI/ConfigManipulation.cpp
@@ -670,15 +670,15 @@ void ConfigManipulation::toggle_print_fff_options(DynamicPrintConfig *config, co
 
     bool have_avoid_crossing_perimeters = config->opt_bool("reduce_crossing_wall");
     toggle_line("max_travel_detour_distance", have_avoid_crossing_perimeters);
-
+     
     bool has_overhang_speed = config->opt_bool("enable_overhang_speed");
     for (auto el :
          {"overhang_speed_classic", "overhang_1_4_speed",
-          "overhang_2_4_speed", "overhang_3_4_speed", "overhang_4_4_speed", "slowdown_for_curled_perimeters"})
+          "overhang_2_4_speed", "overhang_3_4_speed", "overhang_4_4_speed"})
         toggle_line(el, has_overhang_speed);
     
-    bool has_overhang_classic = config->opt_bool("overhang_speed_classic");
-    toggle_line("slowdown_for_curled_perimeters",!has_overhang_classic);
+    bool has_overhang_speed_classic = config->opt_bool("overhang_speed_classic");
+    toggle_line("slowdown_for_curled_perimeters",!has_overhang_speed_classic && has_overhang_speed);
 
     toggle_line("flush_into_objects", !is_global_config);