RHR is commonly around 72, so you're perhaps a tad on the low side, at around 60-62 bpm, but Bradycardia is 50bpm or less, so I don't think you've anything to worry about where that is concerned.
In terms of the length of time it takes to slow down afer activity, as illustrated by your graph, I'd say that's reasonably normal. It seems to tail off quickly within the firts 5 minutes d then graduates further for about another 10 minutes.
If you felt pains, a tightening sensation or some kind or errratic heart-rate, then you'd need to be worrying, especially if it occured just doing some jogging and not necessarily afterwards.
if your heart-rate was really low like in a state of Bradycardia, that might possibly indicate a lack of stimulus, or a weak heart that isn't pumping like it should, in which case either you might benefit from something to strengthen the heart like a Taurine supplement, or more Protein in your diet, or assuming it's a nervous thing and the electrical stimulas was not getting to the Bundle of His properly, then that might require something like an ECG, or one of those box type monitors, for use all day for one day, for a Dcotor or specialist to asesss after use.
So you might want to monitor heart-rate yourself, like you have been doing for a couple of weeks and see if the low BPM, exibits any signs or getting lower or whether it stabilises where it is.
If you were still concerned at that point seek a medical opinion and do as advised.
However by the looks of your graph, I don't think there is much ado, but caution could be the watchword if you're concerned
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