Added to which, a 757 on a low pass at full chat doesn't sound like you might expect it to - those RB211s make some serious noise!
She acquired the nickname "Mighty" because she was considerably over-powered compared to other types - those engines were originally designed for the much larger and heavier L-1011 TriStar. The RNZAF (see video) have become well-known for displaying their 757s as handling almost like fighters.