@DragonCoffee The changes mentioned above is not our doing, in fact, we've already buffed the restocking times of NPC vending machine. I will keep an eye on this thread to see how we can better optimize it for our servers.
As for trade cooldown, that argument is very overused at this point. Trading should not be used on demand like this. It circumvents vending machines and face to face transactions. I've stressed over this enough that trading is not designed to be what you want it to be.