I'm using my Raspberry Pi 3 to stream games when I'm on the road. It worked very well for some weeks but all of the sudden this happened: My mouse cursor ist suddenly super small and laggy af. Also the cursor visually doesn't move or "jumps" with 2 secods lags around whenever I want to click something. When I'm in the steam link menu on my raspberry 3 or the desktop, the mouse movement it also is very fluid and works great.

I already lowered my streaming settings from the beginning like "limit resolution to 720p", "limit bandwith to 5 Mb/s" and "limit framerate" and it worked fine. And when I test my connection it also says that it would work perfectly. But since last week I can barely use Steamlink anymore.

After some fiddleling I can make the games start and it run smoothly, no problem with 720p and 60fps. Just the mouse doesn't really move like at home.

My PC at home is at 1440p and my Internet connection is 100Mbit/s.

Does anyone have an idea what to do?