Hair dynamics laggy (particles)

Hair dynamics lag in blender. I put 100 strands of hair on my character with no children, the hair length is 0.5 and hair dynamics is on but when I animate it it’s laggy as hell.
Also, Since my character is all one piece, the hair is all over it, not just on the head. How do i remove the hair?

Maybe bake the simulation.

https://docs.blender.org/manual/en/3.1/physics/particles/emitter/cache.html

Vertex Groups/Weight Paint or Style with Particle Edit Mode.