Fix wording to reflect poor performance of initial query before optimization (#20534)#20573
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ti-chi-bot[bot] merged 3 commits intopingcap:release-8.5from Jun 27, 2025
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This is an automated cherry-pick of #20534
What is changed, added or deleted? (Required)
Fix wording in the explain walkthrough, the current working seems to imply that the initial performance is good (which it is not). The rest of the walkthrough is to improve the performance, so the changed wording seems more correct.
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What is the related PR or file link(s)?
This PR is translated from: pingcap/docs#20840
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