ES Windows and Doors

After a long time I decided to replace a window and balcony door. I live next to busy road and I just couldn’t stand that amount of noise. I was between MrGlass and ES Windows, and ultimately decided to go with ESW (what a mistake). I got ES-6100 balcony doors and ES-1100 window. Amount of noise coming from balcony doors is maybe 30% less, while my neighbors with MrGlass have almost no noise.

These are images of balcony doors, do you think they are missing any sealing in the middle? Mrglass balcony doors have additional seal in the middle while mine do not, and that is where all noise is coming from.