Hi Adam
Unfortunately, your suggestion made absolutely no difference. When I paste the long content into the editor, then start typing at the top of the page, the delays continue.
Have you tried this on any of your examples, Adam?
Are you sure you understand the problem here? If I paste the large content into the edito and start typing consistently with no pausing between keystrokes, CE displays the typed characters at the same instant that I am typing them. However, if I pause for about 1 second then continue typing, CE goes to background processing and doesn't release to the foreground for a couple of seconds. As a result, the typing doesn't display until the background processing completes.
This was not happening in 5.3.
We need to get to a solution on this.
Fred