Makes sense tbh, if he could just spam that speed without drawback dude would be too overpowered
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You can compare Cracker with Doffy coz both fought Luffy , and Doffy was brought up in Cracker’s fight
But you can't compare King with Katakuri or Doffy as if they faced the same opponent!
Katakuri and Doffy are main villains/antagonists which King isn't
Katakuri and Doffy fought MC not Zoro
You guys really thought King would even fare better than Cracker

King can't even last 2 min lol
I'm back on Smoothie >= King ~ Cracker ~ Queen