This disclosure is directed to systems and methods for determining airflow in a heating, ventilation, air conditioning and refrigeration (HVACR) system to reduce overall power consumption. Methods include receiving efficiency data for one or more compressors of the HVACR system, receiving airflow power consumption data, determining, using a processor, a flow rate based on the efficiency data for the one or more compressors and the airflow power consumption data, and when the HVACR system is in a partial load condition and at least one of the one or more compressors are in operation, operating the HVACR system at the determined flow rate. Systems include one or more compressors, one or more blower fans, and a processor configured to determine an airflow rate for the one or more blower fans based on efficiency data for the one or more compressors and airflow power consumption data.