USB C to A Adaptor for fast charging
Just out curiosity if use a standard USB Type A charging USB Port. And it has fast changing can use a USB C to A Adaptor to take full advantage of fast charging
Your iPad Pro supports USB PD (Power Delivery) Fast Charging, but does not support “QC” (Quick Charge) other proprietary Fast Charging standards.
Most iPad models require a minimum of 10-12W (i.e., 2.0 - 2.4A @5V) to reliably charge. iPad models that support USB PD, when paired with a compatible Power Adapter, increase their maximum charging rate to 18-20W - this being achieved by using different power profiles (e.g., 2.0A @9V or 1.5A @12V).