For about a week the internet on the Playstation 4 has been really bad, matches lag and often break off. I believe the problem has been going on since I downloaded Warzone on the laptop. But does it even make sense that Warzone could be the problem?
I also noticed in general that when my laptop is on, my TV receives 4-7Mbits, when the laptop is in flight mode around 11-17Mbits (from 50 Mbits maximum, it should be noted that the range is unfortunately not the best the apartment is not even big)
I'm assuming that my laptop is the problem.
If it isn't Warzone, what else can I do? Are there any attitudes or anything else that doesn't pull much of the Internet?
Warzone itself isn't the problem (why should it?)
It's more or less a problem with the number of devices on your home network. This problem is also due to your router. Depending on the router, some of them run out of power with 5 devices. You could either: Buy a new or better router, connect your Playstation with a LAN cable or prioritize the Playstation in the network via the router. This will give preference to your Playstation.