Their speed are almost the same, with Morrigan having the slight edge. Though she knew it to herself that's not his real speed. Roman is way faster than this. He's just playing, trying to buy time, trying to gauge her movements, testing her limits like a predator toying with its prey. Morrigan could feel it in the way his strikes were just a hair's breadth away from landing, as if he was purposefully holding back. She couldn't afford to underestimate him, not even for a second.