There is Russian in "Increase Computer Speed".

[huang1111]

<p><strong>Reproduction steps:</strong></p>
<p><span>Open "Improve Computer Speed"-"Improve Computer Performance".</span></p>
<p><strong>Actual result:</strong></p>
<p><span>There is Russian.</span></p>
<p><strong>Expected Result:</strong></p>
<p><span>Chinese exists.</span></p>

[huang1111]

<p>Kafan：<a href="https://bbs.kafan.cn/thread-2189325-1-1.html" target="_blank" rel="noopener">https://bbs.kafan.cn/thread-2189325-1-1.html</a></p>

[Jarvis]

it's "feature is not ready now" in 21.2.10.* builds it's switch on.