diff --git a/source/blender/nodes/geometry/nodes/node_geo_proximity.cc b/source/blender/nodes/geometry/nodes/node_geo_proximity.cc
index 6a6052a1d34..864a85f2849 100644
--- a/source/blender/nodes/geometry/nodes/node_geo_proximity.cc
+++ b/source/blender/nodes/geometry/nodes/node_geo_proximity.cc
@@ -247,6 +247,13 @@ class ProximityFunction : public mf::MultiFunction {
       }
     });
   }
+
+  ExecutionHints get_execution_hints() const override
+  {
+    ExecutionHints hints;
+    hints.min_grain_size = 512;
+    return hints;
+  }
 };
 
 static void node_geo_exec(GeoNodeExecParams params)