linux qt程序很卡

#include <QApplication>
#include <QPushButton>
#include <QThread>
#include <QDebug>

class Worker : public QObject {
    Q_OBJECT
public slots:
    void doWork() {
        // 模拟长时间运行的任务
        for (int i = 0; i < 100000000; ++i) {
            // 做一些计算
        }
        emit workFinished();
    }

signals:
    void workFinished();
};

class WorkerThread : public QThread {
    Q_OBJECT
protected:
    void run() override {
        Worker worker;
        connect(&worker, &Worker::workFinished, this, &WorkerThread::quit);
        connect(&worker, &Worker::workFinished, []() {
            qDebug() << "Work finished!";
        });
        worker.doWork();
    }
};

int main(int argc, char *argv[]) {
    QApplication app(argc, argv);

    QPushButton button("Start Work");
    WorkerThread thread;

    QObject::connect(&button, &QPushButton::clicked, &thread, &WorkerThread::start);

    button.show();
    return app.exec();
}

#include "main.moc"