GrapesJS version

• I confirm to use the latest version of GrapesJS

What browser are you using?

Chrome

Reproducible demo link

https://grapesjs.com/demo.html

Describe the bug

• Fix passing down collectionsSourceMap if not needed
• Insure that all listeners are cleaned if not needed
• Improve Editor.loadProject speed

Code of Conduct

• I agree to follow this project's Code of Conduct