Electric compressor air cooling SEF140 tells: What are the reasons for insufficient compressor displacement?

The compressor is a driven fluid machine that promotes low-pressure gas to high-pressure gas. It sucks in low-temperature and low-pressure refrigerant gas from the suction pipe, drives the piston to compress it through the operation of the motor, and discharges the high-temperature and high-pressure refrigerant gas to the exhaust pipe to provide power for the refrigeration cycle.