I have noticed that the recovery time feature adapts to your fitness somewhat. What inputs is your 530 receving? IS it getting HR data? Power? If only speed and distance I wouldnt put much weight on it all.
If you are concerned, it might be worth keeping an eye on your HRV separately.
I dont pay too much attention to the feature but it doesnt hurt to make note of it - if you are seeing a recommended 72 hour rest after each daily ride you are going to end up overreaching at some point obviously.
See post 14 on,
https://www.bikeforums.net/electroni...or-basics.html