Yeah I read that, but you complain to me 
When in fact you must complain to @ask that he should stop including all servers in the graph.
As I can do nothing about it but take all monitors offline, but the issue isn’t constant.
It’s just the router, currenty a FritzBox 7530AX simply doesn’t cope ans slows down.
I tried to change it by taking the DNS-server out of it and put it on internal servers, but that doesn’t help.
It’s the firewall/nat tables that grow too big in my opinion.
Next Friday I can use the Fritzbox 5690Pro again, that is incredibly faster and doesn’t have this problem.
Last week my ISP, not the monopolistic one, did a test on VDSL and my router was set back to 8Mbit down and 512Kbit up, while it’s normal 100/35mbit.
But it will be fixed soon…then finally free modem-router choice is forced on the monopolistic ISP that controls the network.
Sorry my friend…not much I can do at the moment.
However, I did run over a month with the new router, but they noticed 