Performance-and-memory-optimization.md

@@ -57,6 +57,17 @@ But later once using the *BufferGeometry* versions of the primitives I realized
 
 (memory) `PENDING`
 
+### Optimize the operations with single or few structure elements
+
+Examples: change the position of an atom, remove an atom, etc.
+
+This optimization consists on modifying as fewer scene elements as possible and specially preventing from removal and new creation of lots of elements.
+
+This requires a more fine-grained structure change event. The event needs some parameters in order to communicate the specific change (atom-change, atom-removal, atom-creation...).
+
+
+ 
+
 ## Structure representation and algorithms
 
 The structure representation (data model) and the algorithms working on it can be optimized to work with huge structures efficiently