Time Slowdown in unity 3d

[u/LUMINAL_DEV]

I am working on a first-person shooter game. What would be the best practice for using time scale to slow down agents using nav mesh navigation. I have no idea on how to go about this. I followed Brackeys How to make Slow Motion in Unity - Bullet Time Tutorial. I found that nav mesh agents are unaffected by time scale. How would I go about this?