The more heat you remove from the refrigerant, the more efficiently the air-conditioner system operates.
The condenser is that outside coil on an air conditioner through which warm air blows. Inside it, the hot refrigerant gas coming from the compressor is de-superheated, then it quickly reaches the saturation temperature where the gas is condensed into a liquid. Ideally, the hot gas enters the top of the coil and liquid refrigerant leaves the coil at the bottom, so no gas bubbles exit the coil to enter the metering device. Bubbles flowing through the metering orifice drastically reduce the system operating efficiency.