New (Qt 6.8)

Windows MinGW 13.1.0 64bit Release
  - en		0ms	3ms	0ms	3ms
  - ja_JP	291ms	249ms	270ms	268ms

Windows MSVC 2022 64bit Release
  - en		3ms	3ms	0ms	0ms
  - ja_JP	295ms	294ms	313ms	294ms
  
Linux GCC Release
  - en		1ms	1ms	1ms	1ms
  - ja_JP	78ms	69ms	72ms	69ms
  

OLD (Qt 5.15.17):

Windows MSVC 2019 64bit Release
  - en		19ms	15ms	18ms	19ms
  - ja_JP	224ms	226ms	226ms	223ms
  
Windows MinGW 8.1.0 64bit Release
  - en		16ms	23ms	28ms	13ms
  - ja_JP	253ms	237ms	257ms	240ms
  
Linux GCC Release
  - en		15ms	14ms	13ms	14ms
  - ja_JP	80ms	82ms	82ms	81ms