hankook s1 evo 3 loud

Hello people, would like to know if you have experience with the new tyres s1 evo3 from Hankook? Recently bought me these summer tyres in the dimension 255 35 ZR 20 97Y. Vehicle is an A6 4G 3.0 TDI quattro. Tyre pressure VA: 2.8 bar HA: 2.6 bar (according to manufacturer specification). I feel the tyres as particularly “loud” e.g. at approx. 110 km/h motorway ride or is sometimes even a “wow” noticeable. At higher speed > 130 km/h then rather normal loud. 50 km/h at speeds. On bad asphalt the tires can be heard especially (comparable with a “drowning”. So far these are about 350 km in use. Production country on tire label is Korea (are also produced in Hungary as far as I know). Before that I had Pirelli PZero in use and did not have this phenomenon. Would be happy about your feedback.