Performance effect of Cocos Creator

Generally, how does Cocos Creator affect performance compared to a pure C++ project? For instance, when you have the LuaCPP plugin for CocosCreator and export your scene to a C++ project, you need more functionality to read the exported scene. This must affect the performance somehow - you need to process more files and spend time at reading the exported CocosCreator scene.

To the ones who are familiar with the technical details, how does it affect performance to use Cocos Creator with your C++ project compared to a project not using Cocos Creator?

I very interest with this problem. Does anyone have an answer? THank a lot!