Wheel scrolling issues in WebEngine

When viewing some WebGL applications via QtWebEngine, I am noticing that two-finger scrolling with the trackpad can be a bit erratic and does not follow fast motions well at all. I set up the following minimal example:

 #include <iostream>

#include <QApplication>
#include <QWebEnginePage>
#include <QWebEngineView>

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

    QApplication app(argc, argv);

    QWebEnginePage *page = new QWebEnginePage;
    QWebEngineView *web = new QWebEngineView;
    web->setPage(page);
    web->setUrl(QUrl("https://fractalglider.github.io/fun/2018/02/13/testing-mouse-scroll-wheel.html"));
    web->show();

    return app.exec();

}

If I open this webpage in e.g. Safari and make a smooth oscillating motion with the trackpad with several oscillations a second (roughly 3), I get a smooth graph (attached). If I do the same with the above, the curve is quite noisy and completely fails to keep up at times. Even when moving slowly, the motions are a bit erratic at times in QtWebEngine.