Hidden in wallet 18.104.22.168 is a feature called bootstrap. It allows a new Reddcoin client (not synced) to rapidly import the blockchain from a local file instead of slowly downloading it from peers on Internet.
On my laptop it reduces the import time from 4.5 hours to 1.5 hours. You just need to follow the steps below:
Download bootstrap.dat.xz from an official source. It’s ~240M in size compared to ~560M of the blockchain.