That's her version of a Limit Break and she can't access it regularly.
But it's still inferior to the "real" superpowers.
Parodied: Alice is so weak that she can't even lift her own weapon and is so hilariously clumsy that her opponents fall down laughing... which means the judges grant her victory after victory since a full body takedown is a win.
Zig Zagged: She usually fights using smarts, but she can call on Super Strength occasionally. But it happens often enough to where it's semi-reliable. She just fights smart the rest of the time.
Averted: Alice is a reasonable mix of skill and strength.
Enforced: The setting has robots built in very specific power tiers, thinkers with frail bodies and fighters with limited processing ability. Since Alice is a thinker model, she studies and trains to use her fragile chassis in ways that a fighter model isn't adapted to.
Lampshaded: "Watch out for Alice. She may not look like much, but she knows how to hit you where it hurts."
Invoked: After getting outpaced by her teammates, Alice decides to study and train to keep pace.