Hi CasperJose23,
Thanks for getting in touch!
We understand how frustrating Internet problems can be! Luckily PingPlotter gives you some insight into what's going on.
I took a look at the data you sent over and it seems like you're experiencing an issue in your providers network. Take a look at the screenshot I uploaded. Notice how hop 1 looks great! No issues there. Average latency of 1ms is fast!
Hop 2 is where we start to see high latency and even some packet loss. This is then carried all the way through to the final destination, heise.de. Hop 2 is typically in your provider's network. A quick WhoIs lookup indicates this device belongs to Vodaphone but you'll want to verify that with your provider.
I recommend reaching out to your Internet Service Provider with your PingPlotter data to see if they can do anything to resolve your issue. Here's a guide which will help you build your case:
https://www.pingplotter.com/fix-your-network/outside-network-problems/I wish you the best of luck!