yes, but you can only take it so far.
11 speed - if you have the cash burning a hole in your pocket go for it!
You clearly have no cash flow problems to own such a machine in the first place.
Otherwise, fine as you are I'd say.
That's why I'm umming and aahing, this set up seems to work great! The change would only be for further bling to be brutaly frank.
Had a look at the derailleur B screw setting, it's seems it's set up perfect for use with my 12-27 training cassette, rather than this 12-23, so rather than fiddle as it shifts poifick I'll leave it as it is...