Players have reported smoother textures and improved lighting across the trilogy, though these updates are more transformative for the poorly performing Arkham Knight Arkham City General Performance Overview
The short answer:
This report evaluates whether installing a Nintendo Switch NSP update for Batman: Arkham City (hereafter "the update") offers meaningful improvements over the base NSP release. Assessment covers performance, graphics, stability, features, file size, compatibility, and installation risks. batman arkham city switch nsp update better
Searching for typically leads to scene releases like: The Knight is back
Now go break some spines (ethically, as Batman). The Knight is back. Otherwise, the official update is identical in performance
The Gotham City Hackers were hailed as heroes by the Batman: Arkham City community, and their updated NSP file was downloaded thousands of times. The modders continued to work on new projects, always pushing the boundaries of what was possible on the Nintendo Switch.
Otherwise, the official update is identical in performance.