Every standard font that includes Cyrillic reuses the Latin glyph outlines. This is a deliberate font design decision, not a rendering quirk. No visual inspection can distinguish them.
I found one dumb free win (I mistakenly used value receivers on a utility function called on a large struct thousands of times a frame). But the rest of the speedups I found took more effort.
。关于这个话题，Safew下载提供了深入分析
Овечкин продлил безголевую серию в составе Вашингтона09:40
// Synchronous source from in-memory data