[jussij]

I don't think screen frame rate is a good measure when it comes to measuring editor responsiveness.

For me the only time screen response comes in to consideration is for flicker.

Editors that flicker badly can be very annoying and very distracting.

My measure of editor responsiveness would be a count based measure of the numbers times you can find yourself waiting on the editor.

Now this waiting can happen for very many different editor actions, but it is most annoying for anything that is keyboard input related.

Snappy editors have very few of these wait points, whereas slow editors drive you mad as you find yourself constantly waiting for some action to complete.