The Xiaomi 10s is standard with a 33w charger, which takes about 1 hour and 15 minutes from 1% to 100%. 55w I have not used, but have used a colleague's 66w charger, glory, feel not as fast as my 33w charge, the charger also has to use its own charger, must not be free to use different models of specifications of the charger, not to play with the charge, this will damage the battery life, the charge should be pulled out in time.
Yes, the general charging head is compatible down, but you can only achieve 33w charging effect.