restore: update full restore speed

[qiancai]

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• master (the latest development version)
• v8.4 (TiDB 8.4 versions)
• v8.3 (TiDB 8.3 versions)
• v8.2 (TiDB 8.2 versions)
• v8.1 (TiDB 8.1 versions)
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What is the related PR or file link(s)?

• This PR is translated from: restore: update full restore speed docs-cn#18970
• Other reference link(s):

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• Delete files
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[ti-chi-bot]

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[lilin90]

/lgtm

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-12-26 05:47:35.983519831 +0000 UTC m=+1713446.072322372: ☑️ agreed by lilin90.

[lilin90]

/approve

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: lilin90

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[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-8.2: #19807.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-8.3: #19808.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-8.5: #19809.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-8.4: #19810.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-8.1: #19811.