> If the editor is laggy it is because of the server / infrastructure you are using, not the editor. I can guarantee this as a fact.
I would expect that once the editor loads, unless you trigger an option that requires something from the backend, it would just work. Does it actually send data back and forth during the writing process?
When Wordpress is lagging, it is always because of the infrastructure, whether that is client or server side. The editor does not send data to the backend. Without actually having access to the machine, I can almost guarantee that there are issues with the client-side machine or browser which is the reason for the lagging.
I would expect that once the editor loads, unless you trigger an option that requires something from the backend, it would just work. Does it actually send data back and forth during the writing process?