I believe its more responsive but the absence of body roll makes u think its not responsive.
Mine is equipped with 2 point strut bar and 4 point front lower bar. Front end is solid like rock and steering is even more responsive and direct.
Not sure. Maybe the weight of the car masked the response. My Waja friend also tried my car and he seemed to think that his car is a bit less responsive. His one is not equipped with any bar. It is noticeable that the car doesn't change direction as quickly as a Wira does.