Sometimes, when connected to Anydesk, the screen slows down and the image is transmitted with jerks and lags. In this case, make sure that the 2-3 Mbps Internet channel is free. Perhaps your channel is loaded with traffic due to torrent connections, browser downloads, or video streaming is enabled on a device connected to your router.
By default, the renderer Direct3D is used, but its performance depends on the video card and its settings. Check if the graphics accelerator is loaded by other applications: open the “Task Manager” and visit the “Performance” tab.
If the video card is under heavy load, suspend the resource-intensive tasks for a while.
When working with a multi-display configuration, switch to DirectDraw mode in the settings.