https://www.jdhodges.com/blog/laggy-slow-rdp-session-on-a-fast-lan-the-56-kbps-trap/
J.D. Hodges
RDP Slow on LAN? Fix the Remote Desktop 56 Kbps Trap
My RDP session was slow on a gigabit LAN with sub-1 ms ping. The cause: a 56 Kbps modem preset in the Experience tab. One dropdown fixed it instantly.
