As far as I remember, she'd be enhanced by her use of the Dark Side and didn't even last that long before she relented, same goes with Malak.
'Additionally, Shan was a skilled lightsaber duelist, and wielded a double bladed lightsaber in combat. She proved capable of dueling the redeemed Revan, Jolee Bindo, and Juhani atop the Temple of the Ancients and emerging relatively unscathed, albeit defeated. Shan also managed to hold her ground against Darth Malak long enough for Revan and Carth Onasi to escape. It should be noted that Malak was considered to be one of the greatest swordsmen of his time.'
And as Brandon said, in that time, everybody got overshadowed by the posterboy of the era.