The problem is more with your helmet than the windshield. The padding on the bottom of the helmet should cup (or close to it) your neck. Have a look at Schuberth helmets or the Shoei GT air. I have a Schuberth S3 and it’s wild how quiet it is the C5 is the same way.
@@TheVeroneeLifeSimpson helmets look cool but are noisy. I wouldn’t be surprised if they are over 100db inside. I mean, they were designed for automotive use in the first place.