GWX enemy AI

Hi I was just wondering if the GWX enemy AI is much much better at detecting you because lol iv just installed GWX and i cant seem to get away from them..

no matter what as soon as an enemy warship is in visual contact my sound meter goes red, i dive to maximum depth and run in silent mode and turn engines off etc the enemy is a few km away and it still stays red , lol - what gives??