Death
i mostly try to bait her slides with jumpbacks, also it is possible to zone her a bit with low air lasers. don't do high ones because she can slide under you and do a combo to vortex, and if you are too far you will have to meterburn, which is not the best idea. after a blocked slide you have to try to throw her for a couple of times, it is a good option. last kf i played with tried to punish it with neutral jump 2 but i blocked in time.
if you get her to corner and catch her with f23 she is dead most of the time, if she catches you with a slide and overhead its a terrible guessing game. her vortex is pretty stupid because both options are safe. matchup is 6-4 kf i think, when she gets a damage nerf it will be a bit more reasonable, because she will have to guess more times.
also her anti air is pretty damn good already even before the universal d2 buffs, so i only try to jump on her in setups after knockdowns. pick a stage with some interactibles to throw at her, it will also help.
mix up your pressure more, with f2 d1, tick throws, f23~heatzap for frame advantage and normals cancelled into trait.
this matchup will require you to read her a lot, i am not aware of a true strategy for kf yet, unfortunately her design makes it a guessing game.
im not sure about keeping meter to punish slides with super, because i try to save it for combos and punish her as hard as possible for every mistake.
hope it helps a bit.