By changing your DNS you're probably getting routed to a different Sony CDN (content network) which would be the reason why your speeds improve. The clue is that your PC or other devices have great speeds with your ISPs DNS server while your ps4 doesn't.
DNS just resolves a host name/URL to an IP address. When it initiates a download the software is going to use the DNS server to resolve the host name and then communicate directly with the IP address.


Comment