amnesia Grunt Brute Run/speed limits

[Hunter of Shadows]

Is there anyway To make Grunt or a Brute Run Faster or Slowly
because on the normal Amnesia i saw on some parts the Brute runs very Fast even if you not looking at hem
Same as the Grunt
via scripting way

Both are always very fast when they break into a sprint with the brute being faster, generally they won't run towards you unless you're a certain distance away, but if its in a straight line you can expect to be caught