The PS4 version of Saints Row 4: Re-Elected runs at native 1080p with an unlocked frame rate, according to pixel-counting experts Digital Foundry.
The game is said to cap the frame rate at 30fps during cutscenes, however.
The unlocked framerate means that the PS4 remaster can reach 60fps during gameplay, but, according to DF's report, often sits somewhere between 30-40fps.
The fluctuation in frame rate can create "a jerky experience that feels distinctly uneven to play", the site says.
"Beyond a handful of subtle changes to artwork and lighting, upgrades in other areas are kept to a bare minimum, with some effects actually downgraded compared to the existing PC game running with the highest settings enabled," the report adds.
"Texture filtering is poorly handled on the PS4, with markings and general detail becoming blurred at a distance. This actually reduces the impact of surface shaders across wet roads and specular reflections, making the city of Steel Port appear less striking under certain weather conditions. Elsewhere, ambient occlusion appears to be dialled back in strength from the PC release, and depth of field is absent, despite its implementation on the Xbox 360 and PS3."
The PS4 and Xbox One versions of Saints Row 4: Re-Elected were both developed by The Conduit developer High Voltage Software rather than original developer Volition.
The Xbox One version has yet to be tested.
Saints Row 4: Re-Elected launches this Friday, January 23 alongside standalone expansion Gat Out of Hell. Check back soon for our review.