As mentioned the GT uses the standard screen. It's essentially the same bike as the standard ABS but with luggage and a centre stand. I can understand your disappointment with the screen, I felt the same riding my "new" bike home.
It has to be said that the Strom screen is probably one of the worst pieces of junk ever designed. Riding with no screen attached is an improvement - honest, give it a go! There's pages of info on here and elsewhere outlining possible solutions, everything from no-cost solutions (outlined by jonH) to more expensive solutions such as an MRA plus Madstad.
I'd suggest for your height, try the Tall MRA Vario (probably in the middle position). This seems to work most, if not all, who have tried it. If that doesn't solve it (after trying different heights for screen and lip), then buy a Madstad and start playing about with the tilt angle. I'd be amazed if you don't find a solution with an MRA + Madstad fitted.
I'd rate the MRA as the best accessory I've ever bought, but any change is better than the standard screen! The short sports screen fitted to the X model is an improvement over the standard, cuts out the buffeting, but doesn't give as much protection as the MRA.