I have no idea these just came to mind.
You're are experienced with these scenario's and can perform them quicker.
You heal, Repair, and Sabotage 3%/6%/9% faster when uninjured.
You can make do with what you have.
Your perks that you use (Apart from Handy) are 2%/4%/4% more effective and have a cooldown reduction on all exhaustion perks by -%/-%/10%
Your body produces more sweat which makes it harder for the killer to keep a hold on you
When being Carried by the killer, the time it takes to wiggle is reduced by 3%/6%/9% and wiggling is 5%/10%/15% more effective.
This is my FIRST per suggestion and it's supposed to make perks more effective.
A scenario of the 'Handy' Perk, during a chase Sprint burst, lithe etc. could;
1. run at 152%/154%/154% (+ 54s/45s/36s tier 3)
2. Dead hard - (54s/45/36s Exhaustion tier 3)