Korean text rendering

[Igor Mironchik]

On 15.05.2025 08:29, Konstantin Kharlamov wrote:
> On Thu, 2025-05-15 at 06:29 +0300, Igor Mironchik wrote:
>> Hi.
>>
>> Are any Korean here? I'm curious if they have very bad performance of
>> rendering Korean text in any Qt application? Or is this just because
>> of
>> missing some fonts on my system? I see a huge performance slowdown on
>> Korean text rendering.
> How did you measure? I'm not a Korean, but I tried pasting a Korean
> wiki article to Kate with "Droid Sans [1ASC]" font and scrolling and I
> don't see any change in performance. Perhaps some more scientific
> method required.


I paste in Kate a Korean text (~1kB), it took so much time to paste and 
render it (~5 seconds), and Kate starts to think a lot even on 
navigating in menu.

The same with English or Russian text - I don't see any delays, Kate is 
responsive.