Keep in mind that Internet speed is often measured in megabits per second, not megabytes per second. There are eight megabits in a megabyte, so a 25 Mbps connection is only allowing you to download ~3 megabytes per second. Upgrading your plan or switching to a better Internet Service Provider will most likely fix any capacity problems.
To solve this problem, try downloading when there’s no one else in the house and no extra Internet items on your network.
One end of your Ethernet cable should plug into the square port in the back of your PS4 while the other plugs into a similar port marked “Internet” on your modem or router. Ethernet cable ends are interchangeable.
Use Wi-Fi - Select this if your console is connected to the Internet via wireless. Use a LAN Cable - Select this if your console is connected to your modem via an Ethernet cable.
If you’re on a Wi-Fi network, you’ll have to select the network you want to set up at this point.
Google - 8. 8. 8. 8 (“Primary” field); 8. 8. 4. 4 (“Secondary” field). OpenDNS - 208. 67. 222. 222 (“Primary” field); 208. 67. 220. 220 (“Secondary” field). Double-check your typing’s accuracy before continuing.
Do not lower your PS4’s MTU number; contrary to past experience, lowering the MTU number will no longer increase your PS4’s download speeds.