I think we should scrap of all the obvious bait & stuns.
Reduce the points given by the Reality Dissociation Syndrome if needed.
Then, focus on stuff that you can't easily check/dismiss.
A lot of these could just be more out of reach audio: clawing/slashing + visceral, door-prying (including non-transparent doors you can actually see), magic...
As for visual, I'd play with view range:
catching a glimpse of something just as you move past
or as it skitters out of view in darkness, just as you approach.
You could also do some split or change the rate at which different stuff appears, depending on drugs, BZ, SM or the trait.