Bad quality when uploading to YouTube?

So
- in Servers
1

I regularly upload Minecraft server trailers on my YouTube channel, which is why resolution / compression is very important. With me there's the problem that the video looks very good as. Mp4, but as soon as I upload it to YouTube, the quality deteriorates drastically and in some places, how can I say, "noisy".

Here are screenshots, the first directly from the mp4 file, the second from YouTube.

You may not notice that on a screenshot at first glance, but with a liquid video the difference is even stronger. Have been looking for a solution to the problem for some time, but unfortunately I have not found anything yet.

I appreciate your answers!

me