@Cor_S: I'm connected over a CAT6 wire directly to the router.
I'm using a MacBook Pro with a thunderbolt ethernet interface reporting a hardware link speed of 1 Gbit/s. The transfer statistics on the computer report zero packet loss.
Using an iPhone XS over wifi, I get worse connection as expected due to the limitations of wifi.
My computer hardware is up to the job. The internet connection speed is what is lacking.