A. Sakura's speed
Your first issue is you think Kimimaro is way faster than Sakura if anything they are the same speed. Sakura does not have a 3 in speed anymore. This is clear from getting her seal, she is stronger and faster since she no longer has to focus chakra in her forehead. And she has better reaction feats than dodging part 1 base Lee.
Able to
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a chakra arm which was able to catch a Naruto clone and Naruto even points out its insanely fast.
React to a pool of acid from above, grabs a person and gets to higher ground. [
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]
B. No Regeneration
Kimimaro does not have regeneration, you keep mistaking abiltities to make it something its not, he clearly states himself that he controls
Bone forming and destroying, just bone cells. He does not injure himself when bones come out of his body, this is clear because there is no blood when the bones come out, the bones are not pushing though his flesh, its coming apart to let the bones out. He is only seen bleeding from his sickness and from Gaara's sand compression. That was an actual injury he could not heal [
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]-[
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]-[
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] As you see the wounds he suffered are not healing.
Now they
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when he went into his curse mark however that is not the case. As we know from the curse mark it
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and even adds flesh to the body,
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,
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,
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,
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and
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.
Whenever something is healing or regenerating in the manga you get a sizzle and burning. [
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][
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][
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][
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][
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][
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] You never see any of that for Kimimaro.
C. No defense to her attacks
Kimimaro is durable obviously but Sakura can break though his bones and destroy his body.
Yes he survived Gaara's sand compression but Sakura deals different type of damage.
Scenario (Just a a little scenario to show you what I mean):
Gaara's method - Push down the metal part of an hammer onto an apple. Its very hard to compress an apple like that.
Sakura's method - Take the hammer and slam down on it with force. It will be smashed.
That is precisely the different damage Gaara and Sakura deal. So because he survived Gaara's compression doesnt mean he can survive Sakura's impact. Which was able to do this [
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] and broke Kaguya's horn off [
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] now Kaguya has Juubi durable and has the same ability as Kimimaro.
D. Unusual fighting style
Sakura and Tsunade are the only ones in the manga who take damage to land a hit, Kimimaro was hit by Lee because he couldnt predict his movements, same thing will happen when he thinks Sakura is dead or cant move from his bone attack. When Sakura goes into CQC and he immediately pushes bones into her body, she will
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and still
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.
Sakura destroys the battlefield with every punch. [
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][
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] Those hits will completely blow any bones coming out of the ground from bone forest. She can break through any bone weapon he creates as his bones wont be strong enough against her attacks.