A home charging point for your electric vehicle charges at 3.7kW or 7kW which is about 15-30 miles per hour charged, that’s compared to charging an electric car using a 3 pin plug which provides up to 8 miles per hour charged (2.3kW). You can get charge points that go up to 22kW but these require 3-phase power not commonly available at domestic properties.
Charging speed for electric cars is measured in kilowatts (kW).
However charging speed is limited by your vehicle. Even so, smart electric car charging points limit the charging rate so installing a 7kW charger will not damage your battery.