When I review posts, I often see "improved formatting" but when looking down on the post in the narrow side by side view, with rendered output, all I can focus on is a blur of overstrikes, red and green in a text that is half the width that it usually is. This sometimes makes it hard to see if anything is improved at all.
What I would like was to have either have the possibility to turn off/on the diff colour output, and the opportunity to turn of the side by side and view only the original and only the edit. This would allow for a quicker resolution for all reviews that is based on the look of the question/answer. I am not suggesting to remove the colors or the side by side view, they are fantastic tools for reviewing, only an option to turn them off.
I understand that the text is viewed in many different widths and should look as good as possible at any width. But dividing the review and the edit would make them narrower than most people view it anyway.
I know that I could look at the complete answer/question at the original question site, but this will require me to load a new tab and it doesn't let me view how the edited answer would look in the original context.
If any of these features already exists, there is either a problem with me being an unnaturally inattentive user or a problem with the UI.