I don't understand. Preview is by far the slowest PDF viewer I've ever used. Scrolling through 100+page documents brings it to its knees. Gthumb in my experien

I don't understand. Preview is by far the slowest PDF viewer I've ever used. Scrolling through 100+page documents brings it to its knees. Gthumb in my experience is far more performant. Scrolls like butter, regardless of PDF size. But unfortunately I don't think there's a macOS native UI port.