Hi Junglie, and welcome.
I've a k1200GT, which has the same ergonomics. I'm also 6' for reference.
Firstly, the bike has a lot of adjustments. The Screen, the handlebars, and the seat.
The Seat. It has two positions. I prefer the higher position as it is more sitting "on" the bike rather than "in". At the lower position it reminds me of my old K1100LT. A very "touring" position.
The Handlebars. Experiment with these. They have 5 positions. Most people (from a survey I remember), use the middle position. I do as well. it puts just enough weight on my wrists.
The Screen. I have a ZTek screen, which was on the bike when I bought it. I can't say what the original screen is like, but there doesn't seem to be much difference in height (I got the original with the bike as well).
I adjust the screen depending on what I'm doing. Around town in the Summer, I have it down. Out of town I put it up.
I still get a bit of buffeting, it isn't an LT. But I don't find it too intrusive. The helmet might be a factor, as already said. I have a Shubert C3 pro. Earplugs are a given.
So I'd suggest experimenting a bit before opening the wallet.
Also, check with your pillion if you carry one. My wife is very comfortable at 110km. Above that and she gets too much buffeting. so 110 it is. And I always put on the backbox when she's on. She finds it easier to handle the 150HP on tap.
It certainly isn't as cossetting as an LT, but then, it is a much sportier bike.
I don't like looking through a screen, so even though I could get a higher screen, I am happy as is. After all, It is a motorbike.
On saying that, i am tempted by Rae's suggestion of a MRA Xcreen. It's a BMW disease. Bring My Wallet.