Nurse should start the game as a 110% walking killer, however upon hitting a survivor with a basic attack she gains a scream charge.

The survivors scream from a basic hit then shifts her movement speed back to her original (96% floating speed) but gives her the trade mark teleport ability. Now good nurses can basically keep her into teleport mode by successfully gaining hits to charge her scream meter (Up to 2). However misses places her back into (110% walking mode.)

So we constantly have nurse changing from a 96% speed killer with teleports, then back to a 110% killer with no teleporting ability. This could be seen visually from survivors from her floating above the ground, meaning she has a scream, then she walks normally on the ground when she is (110% speed without any charges.)

This fundamentally changes Nurse in a way that is fair to survivors while keeping her power where they need to earn it, the same way an Oni player must gain theirs.