NeoRagex relies heavily on hack-based emulation to achieve its high speeds on low-end hardware. This means it is not as cycle-accurate as modern emulators.

An extensive guide to the covering its features, setup, and legal considerations. What is NeoRagex 5.2a?

To help you get the best setup for your classic arcade experience, let me know: What are you planning to run this on? Are you using a keyboard or an arcade stick/controller ?