A high-quality Supermodel ROMset sources dumps from verified arcade boards (often via the MAME 0.250+ update) that fix these specific glitches. The difference is night and day.
Beyond the files themselves, "better" performance often depends on how the emulator interacts with the romset:
: Adjust the analog saturation settings to prevent twitchy steering in racing games like Daytona USA 2 . Platform-Specific Guides
Because it’s purpose-built, Supermodel can take advantage of hardware acceleration (OpenGL/Vulkan), widescreen hacks, and advanced CPU recompilers. However, an emulator is only as good as the ROMs you feed it. This is where the "Supermodel ROMset" philosophy becomes critical.
