Revert "pm: no speed limit, less aircontrol"

This reverts commit 36f01183aacf386fc73278dbd8433d5c3d92766e.
Revert "pm: allow circle shite for slab"

This reverts commit 8bf4e3e662ddfd784a0cf4292de9067cbc77adde.
pm: fix revert
Revert "pm: new accel function"

This reverts commit d3edd630340317bd8fd939b9ad648114c1d3e440.