There are numerous ways to increase PS4 internet download speed when using PSN, but what are the best? The best ways to improve the download speed of your PS4 are: Put Your PS4 Into Rest Mode to Improve Download Speed.How to Improve PS4 Download Speed for Free.Pay for a Better Internet Connection for Your PS4.If you can, use a Wired Connection for Your PS4.How to Increase PS4 Download Speed - For a Price.