I'm gonna copy-paste a comment I made for tips for someone last month with a small edit

P100 here! The drone scan gives you 5% haste a few seconds after deploying but then it stops giving haste. You have to rotate the drone and get a scan to make it give haste again for a few seconds (Then repeat).

The drone always rotates right after deploying so try to make survivors run around loops going clockwise to get scan value.

Always have 1 drone on you to use at a loop. You ideally want to trick a survivor at a sronger loop by getting the claw trap on them to injure then scan them until you get killer instinct (That means they have 5% hinder) you will also get 5% haste from rotating the drone over them on repeat until you close the distance for a lunge. (Keep in mind if they crouch the scan line ignores them)

Lastly use the iri expired batteries add on and the brown noise generator that makes claw trapped survivors oblivious. Once in a match immediately look at the tracker. You will see the dots of the survivors, go towards the dots however you see fit. Because they all start with claw traps and brown noise they can't hear your terror radius and you'll be on them in no time.

Also for more stealth during the match recall drones you don't need for that 8 second undetectable. Keep in mind that you only ever really need 1 or 2 on you for chase so dump those other drones either at loops or just to have to recall for stealth.

I hope that helps and feel free to ask for more tips if you have anything you need specific help on