[Bug 52496] New: supermemo18 's render become so slow when text has foreign style.

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52496

Bug ID: 52496
           Summary: supermemo18 's render become so slow when text has
                    foreign style.
           Product: Wine
           Version: unspecified
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 71791
  --> https://bugs.winehq.org/attachment.cgi?id=71791
by `WINEPREFIX="xxx" wine sm18.exe &> log1.txt`

The text rendered in SuperMemo18 is so slow.

wine-7.0

Linux archlinux 5.16.3-arch1-1 #1 SMP PREEMPT Thu, 27 Jan 2022 14:18:25 +0000
x86_64 GNU/Linux

repo address

https://github.com/wuyudi/sm18-lazy-package

It's ok to redistribute this, see readme.

---

According to this repo.

https://github.com/alessivs/supermemo-wine/blob/master/verbs/supermemo18.ver...

run below one by one(or there will be too many bugs to show this problem.)

```
WINEPREFIX="xxx" winetricks ie8
WINEPREFIX="xxx" winetricks gdiplus_winxp
WINEPREFIX="xxx" winetricks tahoma
WINEPREFIX="xxx" winetricks fontsmooth=rgb
WINEPREFIX="xxx" winetricks winxp
```

Then
`WINEPREFIX="xxx" wine sm18.exe`
Click File on the Manu bar.
New collection
Change the name or just click ok.
Click Add on the left.
the right will show a frame to input text.
Go to any website, copy-paste some text into it,
(for example, this website
https://suulnnka.github.io/BullshitGenerator/index.html?%E4%B8%BB%E9%A2%98=%...
is used to generate a lot of meaningless Chinese words to test text render.)

then, it begins slowly.

select some words. Alt+X, becomes very slow.