diff --git a/resources/definitions/ultimaker_factor4.def.json b/resources/definitions/ultimaker_factor4.def.json
index 5501148967..ca72e05c8f 100644
--- a/resources/definitions/ultimaker_factor4.def.json
+++ b/resources/definitions/ultimaker_factor4.def.json
@@ -64,6 +64,7 @@
         "bridge_skin_material_flow": { "maximum_value": "100" },
         "bridge_skin_material_flow_2": { "maximum_value": "100" },
         "bridge_skin_material_flow_3": { "maximum_value": "100" },
+        "bridge_sparse_infill_max_density": { "value": "50" },
         "bridge_wall_material_flow": { "maximum_value": "100" },
         "bridge_wall_speed": { "value": "speed_wall" },
         "brim_width": { "value": "5" },
diff --git a/resources/quality/ultimaker_factor4/um_f4_aa0.4_cpe-plus_0.2mm.inst.cfg b/resources/quality/ultimaker_factor4/um_f4_aa0.4_cpe-plus_0.2mm.inst.cfg
index cd3fdba7a1..a35f2d6e10 100644
--- a/resources/quality/ultimaker_factor4/um_f4_aa0.4_cpe-plus_0.2mm.inst.cfg
+++ b/resources/quality/ultimaker_factor4/um_f4_aa0.4_cpe-plus_0.2mm.inst.cfg
@@ -17,5 +17,6 @@ _plugin__curaenginegradualflow__0_1_0__gradual_flow_enabled = True
 _plugin__curaenginegradualflow__0_1_0__max_flow_acceleration = 1
 inset_direction = outside_in
 skin_material_flow = =material_flow * 0.93
-speed_print = 60
+speed_print = 80
+wall_thickness = =line_width * 3
 
diff --git a/resources/quality/ultimaker_factor4/um_f4_aa0.4_pc_0.2mm.inst.cfg b/resources/quality/ultimaker_factor4/um_f4_aa0.4_pc_0.2mm.inst.cfg
index 16ea397d55..3257605cd2 100644
--- a/resources/quality/ultimaker_factor4/um_f4_aa0.4_pc_0.2mm.inst.cfg
+++ b/resources/quality/ultimaker_factor4/um_f4_aa0.4_pc_0.2mm.inst.cfg
@@ -17,5 +17,6 @@ _plugin__curaenginegradualflow__0_1_0__gradual_flow_enabled = True
 _plugin__curaenginegradualflow__0_1_0__max_flow_acceleration = 1
 inset_direction = outside_in
 skin_material_flow = =material_flow * 0.965
-speed_print = 60
+speed_print = 80
+wall_thickness = =line_width * 3