After playing countless of hours with the KE81 load out (Hochfir, Extra Supplies, Potent Packs) I changed to a KEK10 loadout for a more potent gun.
I have to say, that without both healing perks I feel like I am in constant struggle with cool down and being a really useful medic. Maybe it is because I am so used to the KE81, but I think giving Phoenix Potent Packs or Extra Supplies by default (maybe both, but this could be too much) would give him a nice small buff that wouldnt make him OP or change the balance of the medics.