diff --git a/src/build123d/topology/composite.py b/src/build123d/topology/composite.py
index 3628eea..4b41cb6 100644
--- a/src/build123d/topology/composite.py
+++ b/src/build123d/topology/composite.py
@@ -189,31 +189,6 @@ class Compound(Mixin3D[TopoDS_Compound]):
         """The dimension of the shapes within the Compound - None if inconsistent"""
         return topods_dim(self.wrapped)
 
-    def _update_geometry(self):
-        """
-        Rebuild the internal TopoDS_Compound from the children.
-        This runs once per batch assignment.
-        """
-        # Safety check: if no children, maybe handle as empty compound or return
-        if not self.children:
-            # Optional: Decide if an empty compound should be null or an empty TopoDS
-            return
-
-        # 1. OPTIMIZED LOGGING
-        if logger.isEnabledFor(logging.DEBUG):
-            count = len(self.children)
-            if count > 10:
-                logger.debug("Rebuilding Compound with %d children", count)
-            else:
-                kids = ",".join([child.label for child in self.children])
-                logger.debug("Rebuilding Compound with children: %s", kids)
-
-        # 2. GEOMETRY RECONSTRUCTION
-        # Note: Ensure _make_topods_compound_from_shapes is imported
-        self.wrapped = _make_topods_compound_from_shapes(
-            [c.wrapped for c in self.children]
-        )
-
     @property
     def volume(self) -> float:
         """volume - the volume of this Compound"""
diff --git a/src/build123d/topology/shape_core.py b/src/build123d/topology/shape_core.py
index e86e6ad..1a3d4a8 100644
--- a/src/build123d/topology/shape_core.py
+++ b/src/build123d/topology/shape_core.py
@@ -294,9 +294,6 @@ class Shape(NodeMixin, Generic[TOPODS]):
         self.label = label
         self.color = color
 
-        # Flag to suppress expensive geometry rebuilds during batch operations
-        self._suppress_update = False
-
         # parent must be set following children as post install accesses children
         self.parent = parent
 
@@ -324,71 +321,6 @@ class Shape(NodeMixin, Generic[TOPODS]):
     def _dim(self) -> int | None:
         """Dimension of the object"""
 
-    @property
-    def children(self):
-        """Override anytree children getter."""
-        return super().children
-
-    @children.setter
-    def children(self, values: Iterable[Shape]):
-        """
-        Optimized children setter. 
-        Bypasses anytree's O(n^2) validation (duplicate/loop checks) for massive speedups.
-        """
-        self._suppress_update = True
-        try:
-            # 1. Standardize input to a LIST (Critical: AnyTree requires a mutable list internally)
-            new_children = list(values)
-            
-            # 2. Access internal AnyTree storage (Name mangling required)
-            children_storage = "_NodeMixin__children"
-            parent_storage = "_NodeMixin__parent"
-
-            # 3. Detach existing children (Manual NodeMixin logic)
-            if hasattr(self, children_storage):
-                old_children = getattr(self, children_storage)
-                for child in old_children:
-                    setattr(child, parent_storage, None)
-            
-            # 4. Set new children LIST (Skipping set() validation)
-            setattr(self, children_storage, new_children)
-            
-            # 5. Attach new children (Manual NodeMixin logic)
-            for child in new_children:
-                # Fast link to self
-                setattr(child, parent_storage, self)
-                
-        finally:
-            self._suppress_update = False
-            # Trigger the geometry rebuild exactly once
-            self._update_geometry()
-
-    @children.deleter
-    def children(self):
-        """
-        Delegate deletion to NodeMixin (equivalent to setting children = ()).
-        """
-        self._suppress_update = True
-        try:
-            NodeMixin.children.__delete__(self)
-        finally:
-            self._suppress_update = False
-            self._update_geometry()
-
-    def _post_attach_children(self, children: Iterable[Shape]):
-        """Called by anytree after a child is attached via `child.parent = self`."""
-        if self._suppress_update:
-            return
-        self._update_geometry()
-
-    def _update_geometry(self):
-        """
-        Virtual method. 
-        By default, Shapes (Solids, Faces, etc.) do NOT change their 
-        geometry when children are added. 
-        """
-        pass
-
     @property
     def area(self) -> float:
         """area -the surface area of all faces in this Shape"""