Try this:
The stunning, redesigned Retina display in iPad Pro features ProMotion, a new technology that delivers refresh rates of up to 120Hz for fluid scrolling, greater responsiveness and smoother motion content. With ProMotion, Apple Pencil is even more responsive with an industry-best, 20-millisecond latency for even more fluid and natural drawing. ProMotion also improves display quality and reduces power consumption by automatically adjusting the display refresh rate to match the movement of the content.