An adjustable trim system for a turbocharger compressor including a ported shroud for a vehicle propulsion system includes a compressor inlet adjustor positioned in a compressor air inlet and being continuously adjustable between a fully open configuration, a ported shroud closed configuration, and a partially-open ported shroud recirculation configuration between the fully open configuration and the ported shroud closed configuration, and a compressor inlet adjustor control module that adjusts the configuration of the compressor inlet adjustor to a configuration between the fully open configuration and the ported shroud closed configuration when the turbocharger pressure ratio is higher than a predetermined pressure ratio threshold and the compressor corrected air flow into the compressor housing inlet is less than a maximum compressor corrected air flow of a compressor flow map for the turbocharger compressor.