I don't think that fits MS Office. The situation is more that you have a working, usable word processor which has all the festures your user needs. Since many years ago. But your UI designer thinks it can be a little more beautiful but much slower. Of course you give that way too much priority.

On my Laptop where I am forced by my company to run windows, I run word 2010 and it runs far better(speed and stability) that the newest word I have to use ob my office pc.