San Francisco font not displaying correctly

San Francisco and other UI fonts do not seem to be optimized for Ticuna, as some characters display incorrectly with extra spacing. An example is attached, the issue is specifically between the saltillo and other characters. Is it possible to substitute out the font for one with the correct display for Ticura? This does not seem to be an app specific issue but a font issue. This is a universal problem in all applications regardless of region or language. 

Hello, I'm from Thailand. I would like you to try updating iOS to the latest version. Alternatively, you can report a problem through the purple Apple Feedback app. and an exclamation mark in the middle You can report a problem in that app. I already reported the problem, it works because it's a software glitch, I hope this problem can be solved. Thank you

San Francisco font not displaying correctly
 
 
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