Modern graphics drivers from NVIDIA, AMD, and Intel have deprecated support for the older OpenGL instructions utilized by the 2011 Mercury engine, occasionally causing canvas artifacts or random application crashes. macOS Constraints
Modern Creative Cloud applications require substantial background resources to manage cloud syncing, font licensing, and telemetry services. In contrast, CS5.1 operates as a completely self-contained binary. On modern multi-core processors paired with NVMe solid-state drives, CS5.1 launches near-instantaneously and processes high-resolution filters with minimal thermal overhead. Operating System Compatibility & Modern Hurdles
Under the section, uncheck Enable OpenGL Drawing .