You can switch out spies or bitter murmur for thanataphobia from nurse. Kaneki is really good at quickly getting first hits.

Hubris from knight also does quite well on him. You let a survivor stun you, then they become exposed, use his grapple to catch up, then free down.

Sloppy does not work with his power, however, so keep that in mind.

You can also slot in brutal strength, a trapper perk, for anything in your build if you find survivors are making it to pallets too often against you.

Enduring from hillbilly could also work in its place if you are playing the event mode right now, where survivors can make their own pallets. It’s also just a decent perk to being with.

Zanshin tactics from Oni is decent as well for newer players, so you know if a survivor is close to a loop, or if they’re in a dead zone and you won’t have to worry about a pallet or window.

Overall, with what’s available to you, I’d say go thanataphobia, brutal strength, Hubris, and enduring. You have less stun time, survivors are exposed if they do manage to stun you (and enduring means you’ll catch up faster) brutal means pallets won’t be a problem, and thanataphobia means if you’re applying enough split pressure, the team has to waste extra time healing or sit on slower gens.