Safari PC lags on focus recognition

I realize that there is some question about the ongoing viability of Safari as a Windows browser. Yet I am developing using a tool that launches Safari using that version, with the hope that when I test on a Mac, it will work on whatever browser is launched, including Safari. And I am discovering that Safari on Windows is just plumb slow. For example, even with the fix below, the undo button doesn't light up for quite sometime, after an indeterminate number of keystokes (but always right away on Enter). No such problems in any of the other major browsers.

But otherwise I developed a workaround for the problem I posted above. I simply respond to the "key" event and fire the focus event so that I capture interaction before the focus event is recognized by Safari. Here is the relevant code:

      CKEDITOR.instances[TextAreaElement.attr("id")].on("instanceReady", function(e)
      {
         var FirstFocusEvent = true;
         e.editor.on("focus", function()
         {
            if (FirstFocusEvent)
            {
               FirstFocusEvent = false;
...            }
         });
         e.editor.on("key", function()
         {
            if (FirstFocusEvent) e.editor.fire("focus");
         });
   });

You have a wonderful editor which, with a little work, can be made to work elegantly for situations like the one I encountered for Safari. I hope that the on.("key", ...) workaround ends up qualifying as elegant -- meaning that it works, it's simple, it doesn't require much code, it doesn't involve messing around with stuff that is best left to the development of major things like plugins, and, most importantly, it doesn't interfere with the editor working properly on better browsers. If, after a thorough test, it interferes with the editor on the other browsers, I'll drop it.

I must confess that it does take too much time to get to that point. I try to do the same thing with IE6, which actually is possible if you read an extensive amount of stuff and try to synthesize it all into general principles. But what a royal pain. Is Safari the new IE6?

And I noticed that you are dropping IE6 compatibility from CKEditor's 4.0. Smart move. I have to make my site work for the corporate ninnies who can't muster the moxie to update from that woeful platform. But the small subset of my users (reviewers) who will be using your terrific editor will be using modern software, so no worries.