Bad performance of QDateTime object creation in Qt 6

#include <QCoreApplication>
#include <QDateTime>

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
      qint64 utc = QDateTime::currentDateTime().toMSecsSinceEpoch();

      for (int i = 0; i < 100000; ++i) {
            QDateTime(
               QDate(2025, 4, 27),
               QTime(16, 29, 30, 999));
    }
    
      qint64 interval = QDateTime::currentDateTime().toMSecsSinceEpoch() - utc;
      qInfo("Interval is %lld", interval);
    return 0;
}