I'm roughly 2080-2120 rank depending on who I'm getting matched up against. So this post is to try to give some advice vs KFM.

Ground game is all about mix up. Good players will still be able to convert the kd into a daze/stun most of the time, but you will be able to escape every now and then with proper mix ups. It's all about doing what the other player isn't expecting.

Sometimes you can use 2 right away in case you think they will go for daze/stun right away before you ground counter. Sometimes you can just lie there doing nothing and get out freely because they are afraid of your ground counter. Farming Blade and Soul gold to improve your equipment is important. A lot of times you can actually get out with 1 if you hit it instantly, and in general quite often, but very good players can deal with it. You can use 1 to get hit on purpose to lower the kd duration to 1s (assuming they hit you normally and not with a daze/stun). You can hit 1 and when they hit you, use ground counter immediately after. You can try using backroll if the KFM's 4 and C are on cooldown.

I also recommend you to master the ground game yourself (after your air combos and kds). Doing so will let you deal a bit more damage while stalling for your launch cooldown back.

If you managed to get their backroll, don't forget that you can grab and throw them into sleep right away. It's not always a good option, because sleep heals them. But if you lost your tab escape or just need to stall, it can be a good option.

Even when you didn't bait their backroll, you can throw them away and run the opposite direction to get out of combat.

I know that going out of combat isn't allowed in tournaments (not sure about sleeping), so use these tricks of your own accord.

Lastly, I recommend getting Maelstrom and saving iframes for KFM's SS into LMB knock down. The problem most BDs and Dests have against KFM, is that they get hit by it waaay too often. Save your Z, Maelstrom, V if skilled to iframe, and SS for when they use it. Avoiding it with Z and Maelstrom will give you a free punish right away, V as well. Not sure about SS, but you can use it to get behind them.
Sometimes when they try to use SS LMB, you can also use a charge skill after the SS to cancel out their LMB option and hit them. It's pretty hard, but can definitely be done.

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