The killer is pretty much okay-ish, the only thing that makes him great is his lunge, so the series actually gave me a nice idea...
Why don't we make it sense blood?
Here's what I mean:
It either needs to see the aura of blood pools in a 20-25 meters range, or it doesnt necessarily needs its addon to see either injured survivor or blood pools while traversing the upside down.
This would make perks like No Mither and maybe Iron Iill somewhat more useful and make survivor hear against a killer.