Is my cyberpunk mecha pilot too overpowered?

I'm designing a pilot who controls her mecha via a direct neural link, granting her superhuman reflex times. The catch is that neural overload causes severe migraines and memory loss.

Is this drawback enough to balance her insane reflexes in combat, or is she still too powerful?

Neural degradation is a solid drawback! To balance it further, make the memory loss permanent. Each battle should literally cost her a piece of her past.