You need a 5-watt wireless charger
Because the charging power of wireless charging is relatively small, small power will lead to too long charging time. Apple's official website writes that the iPhone 13 Pro supports 5W wireless charging. The iPhone 13 Pro supports 20W of wired charging. There is a lot of power difference, which will naturally lead to a slow charging time. It is recommended that you still use wired charging, the voltage is relatively stable.