Оптимизация кода по получению информации об играх из файла

static CString getGamesDir() {
    TCHAR buff[MAX_PATH];
    ::GetModuleFileName(NULL, buff, sizeof(buff));
    CString baseDir = buff;
    baseDir = baseDir.Left(baseDir.ReverseFind(_T('\\')) + 1);
    return baseDir + L"\\games\\";
}static CString getGamesDir() {
    TCHAR buff[MAX_PATH];
    ::GetModuleFileName(NULL, buff, sizeof(buff));
    CString baseDir = buff;
    baseDir = baseDir.Left(baseDir.ReverseFind(_T('\\')) + 1);
    return baseDir + L"\\games\\";
}static CString getGamesDir() {
    TCHAR buff[MAX_PATH];
    ::GetModuleFileName(NULL, buff, sizeof(buff));
    CString baseDir = buff;
    baseDir = baseDir.Left(baseDir.ReverseFind(_T('\\')) + 1);
    return baseDir + L"\\games\\";
}
static void ListFilesGamInDirectory(LPCTSTR dirName, std::vector<std::pair<CString/*full path*/, CString/*name*/> >& filepaths)
{
    // Check input parameters
    ASSERT(dirName != NULL);
    // Clear filename list
    filepaths.clear();
    // Object to enumerate files
    CFileFind finder;
    // Build a string using wildcards *.*,
    // to enumerate content of a directory
    CString wildcard(dirName);
    wildcard += _T("*.*");
    // Init the file finding job
    BOOL working = finder.FindFile(wildcard);
    // For each file that is found:
    while (working)
    {
        // Update finder status with new file
        working = finder.FindNextFile();
        // Skip '.' and '..'
        if (finder.IsDots())
        {
            continue;
        }
        // Skip sub-directories
        if (finder.IsDirectory())
        {
            // Add file path to container
            filepaths.push_back(std::make_pair(finder.GetFilePath(), finder.GetFileName()));
            continue;
        }
    }
    // Cleanup file finder
    finder.Close();
}
static CString get_game_property(std::wstring property, std::wstring inp) //входной текст
{
    //Обработка отображения объектов сцены
    const std::wregex regex_name(L"\\$\\s*?" + property + L"\\s*?:\\s*?([^\\$]*?)\\$", std::regex_constants::icase);
    std::wsregex_iterator next(inp.begin(), inp.end(), regex_name);
    std::wsregex_iterator end;
    while (next != end) {
        std::wsmatch match = *next;
        if (match.size() == 2)
        {
            CString nameStr(match[1].str().data());
            nameStr = nameStr.Trim(); //триммируем
            return nameStr;
        }
        next++;
    }
    return CString();
}
void LauncherDialog::RescanInstalled()
{
    //int result =std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::high_resolution_clock::now().time_since_epoch()).count();
    std::vector<std::pair<CString, CString> > filePathsAndNames;
    /*installedGameNameCache.clear();
    m_listInstalled.DeleteAllItems();*/
    ListFilesGamInDirectory(getGamesDir(), filePathsAndNames);
 
    for (int i = 0; i < filePathsAndNames.size(); i++)
    {
        //if (installedGameNameCache.count(filePathsAndNames[i].second) > 0) continue;
        CString string;
        FILE* fStream;
        bool have_file = false;
        if (PathFileExists(filePathsAndNames[i].first + L"\\main.lua"))
        {
            _tfopen_s(&fStream, filePathsAndNames[i].first + L"\\main.lua", L"rt,ccs=UTF-8");
            have_file = true;
        }
        else if (PathFileExists(filePathsAndNames[i].first + L"\\main3.lua"))
        {
            _tfopen_s(&fStream, filePathsAndNames[i].first + L"\\main3.lua", L"rt,ccs=UTF-8");
            have_file = true;
        }
        if (have_file && installedGameNameCache.count(filePathsAndNames[i].second) == 0)installedGameNameCache.insert(filePathsAndNames[i].second);
        if (have_file)
        {
            CStdioFile gameFile(fStream);
            CString game_date;
            CString game_name;
            CString game_name_en;
            CString game_author;
            CString game_author_en;
            CString game_description;
            CString game_language;
            CString game_version;
            const int MAX_STR_CNT = 15; //не больше этого количества строк от начала
            int curr_str = 0;
            while (gameFile.ReadString(string))
            {
                std::wstring buf = string.GetBuffer();
                //MessageBox(buf, L"Тест");
                if (game_date.IsEmpty()) game_date = get_game_property(L"date", buf);
                if (game_name.IsEmpty()) game_name = get_game_property(L"name\\(ru\\s*?\\)", buf);
                if (game_name_en.IsEmpty()) game_name_en = get_game_property(L"name", buf);
                if (game_author_en.IsEmpty()) game_author = get_game_property(L"author", buf);
                if (game_author.IsEmpty()) game_name = get_game_property(L"author\\(ru\\s*?\\)", buf);
                if (game_description.IsEmpty()) game_description = get_game_property(L"info", buf);
                if (game_language.IsEmpty()) game_language = get_game_property(L"lang", buf);
                if (game_version.IsEmpty()) game_version = get_game_property(L"version", buf);
                //Если игра уже установлена,обновляем только версию.
                if (approveInfo.count(filePathsAndNames[i].second+suffix) > 0 && !game_version.IsEmpty()) {
if(game_version !=m_listInstalled.GetItemText(approveInfo[filePathsAndNames[i].second + suffix].second, N_SUBITEM_LIST_VERSION))SetCell(m_listInstalled, game_version, approveInfo[filePathsAndNames[i].second + suffix].second, N_SUBITEM_LIST_VERSION);
string.ReleaseBuffer();
                    break;
                }
                else if (!game_date.IsEmpty() && !game_name.IsEmpty() && !game_description.IsEmpty() && !game_version.IsEmpty() && !game_author.IsEmpty() && !game_language.IsEmpty())
                {
                    AddNewGame(game_date, game_name, game_author, game_description, game_version, game_language, filePathsAndNames[i], m_listInstalled);
                    string.ReleaseBuffer();
                    break;
                }
                string.ReleaseBuffer();
                curr_str++;
                if (curr_str > MAX_STR_CNT) break;
            }
            //Игра не находится в списке скаченных и мы не нашли всей информации
            if (!approveInfo.count(filePathsAndNames[i].second) && (game_date.IsEmpty() || game_name.IsEmpty() || game_description.IsEmpty() || game_author.IsEmpty() || game_language.IsEmpty() || game_version.IsEmpty()))
            {
                AddNewGame(game_date, game_name.IsEmpty() ? game_name_en : game_name, game_author.IsEmpty() ? game_author_en : game_author, game_description, game_language, game_version, filePathsAndNames[i], m_listInstalled);
            }
            gameFile.Close();
        }
    }
}

"текст\r\nтекст"