I recall the setting on Alderan to be more of a coniferous forest, so she wont be manipulating vines or anything to that extent. Fold space might make it frustrating to deal with her for Malgus, and if she makes frequent use of it she might even be able to confound him. But in terms of a lightsaber duel Malgus has her beaten somewhat, at this point he's beaten that Zabrak master, beaten Kao Cen Darach, and Satele twice. I don't see her being able to deal with his strength, and his telekinesis and lightning which Vader lacks might be problematic for her.
There isn't much suggesting she is all that more skilled than Satele at this point, and while her esoteric abilities would help her- none of them are enough to suggest they'd impact a direct confrontation (especially when she lacks any real ability to utilize plant matter like in a jungle).