We are facing performance issue while adding custom type nodes into ChangingContentFolderType.

Model:
P.S.
1. Bolded part where we see performance issue.
2. ChangingContentFolderType is an extension of the FolderType and it was created for requirement of dynamically added nodes.
For e.g. We are publishing data over NATS which is consumed by our application and it’s data is added to the CustomTypes under ChangingContentFolderType.

Objects (Level1 1)
| -> RootEntities (Level 2)
| -> ObjectNode (CustomType) (Level 3)
|-> Object Node(FolderType) (Level 4)
|-> Object Node(FolderType) (Level 4)
|-> Object Node(ChangingContentFolderType) (Level 4)
|-> Object Node(FolderType) (Level 4)
|-> Variable Node (Level 4)
|-> Object Node(FolderType) (Level 4)
|-> Variable Node (Level 4)
|-> Object Node(ChangingContentFolderType) (Level 4)
|-> Object Node(Custom Type 1) (Level 5)
|-> Variable Node (Level 6)
|-> Object Node (ChangingContentFolderType) (Level 6)
|-> Object Node (Custom Type 2) (Level 7)
|-> 4 Variable Nodes (Level 8)
|-> Object Node (Custom Type 3) -> 5 Variable Nodes (Level 8)
|-> Variable Node (Level 6)
|-> Variable Node (Level 4)

Code Setup:
1. We have added implementations for createAndreferenceInstance as below, which we use to create custom type nodes(CustomType1)

public T createAndReferenceInstance(Class type, String browseName, FolderTypeNode parentNode) {
final var instance = parentNode.getNodeManager().createInstance(type, browseName, NodeId.randomGUID(nameSpaceIndex));

if (instance instanceof BaseNode) {
((BaseNode) instance).initNodeVersion();
}

if (instance != null) {
parentNode.addComponent(instance);
}

return instance;
}

2. We get ChangingContentFolderType Node from customTypeNode using getter method.
3. For creating custom type nodes(CustomType2) under this ChangingContentFolderType we use below createInstance() method.

public T createInstance(Class type, String browseName, FolderTypeNode parentNode) {
return parentNode.getNodeManager().createInstance(type, browseName, NodeId.randomGUID(atoNamespaceIndex));
}

Issue Description & Investigation:
We are adding custom type nodes(CustomType2) into ChangingContentFolderType, which are around 3100 nodes which is taking ~119489400-131519100 nanoseconds per node to be added into ChanginContentFolderType.

We tried to reproduce the issue with Sample Code but no luck. We tried to add Object Node(.i.e under RootEntities) to MyObjectsFolder and tried to add 3100 nodes as per our namespace to respective ChangineContentFolderType. With sample code it takes ~12-14 seconds.

Prosys Version:
prosys-opc-ua-sdk-for-java-5.2.2-139-client-server SDK.