She's a bit homely but power to her anyway. (Shelby Miles). Barbie barbell is the exception, not the norm. Most girls who powerlift aren't out there to look pretty anyway.
https://pbs.twimg.com/media/Cbiv8oqUsAA_EpV.jpg
And I agree, being able to lift a huge amount, especially for a woman doesn't automatically mean they can kick your ass. Explosiveness and speed and aggression are more associated with men, all things being given, and an untrained boy against a girl who is strong, but nice and gentle would likely end with the boy winning.
But, a sufficiently strong girl would not have to do much fighting since she could just block and push you away from her.