Slow slow slow slow slow slow

It's slow. I have 50 Mbps down, 7 Mbps up, just measured. The media (video) won't load. white rectangle. Nothing happens like the speed is 0.00002 Mbps. The video won't play, or there is no video. Takes ages to show one bit of the video, one layer, let's say a text over video shows up after 5 minutes. Then nothing. It's useless. Good software, but useless. Either make it work, or switch it off permanently.