The amount of sources doesn't reflect how long the fight takes. In all media, it's clear that Qui-Gon vs Maul is a protracted fight.
I know how strong the Dark Woman is. Vader's stronger than, say, Maul, but as I recall, that didn't really show up when the two of them fought. And while Maul was stronger than Qui-Gon, Qui-Gon did send shudders through Maul's body when the two clashed blades.
Also, how much of the fight against Vader was her actually fighting? I recall her abusing esoteric powers, but when it came to actual fighting, she tired faster than Qui-Gon did against Maul in the TPM comic (which I assume would be the most comparable source).