Update peer document less frequently
Because each time a new document is issued, it modifies the Merkle tree of /network/peering/peers.
With 5000 nodes, and a new document every 10 minutes, the tree is modified every 600 s / 5000 = 0,12s.
If we wanted it to be modified every minute, we would need a regular update of 60s*5000 = 3,47 days.
Another possible solution would be to only consider member nodes, and replace 5000 with the actual
IssuersCount in current block.
So for example if 20 member nodes exist, to have an average update every minute: 60s*20 = 20 minutes.