I’d like to know as well. Been trying to remap using Karabiner but NoMachine sends the input directly to the machine so it bypasses Karabiner completely. Even remapping using the Keyboard preferences from the Mac machine itself doesn’t work.
Hi, I just reproduced this again. I don’t use a monitor on the Ubuntu machine, I use a headless display adapter (HDMI). I plugged in a monitor when it was slow and it seemed to resolve the issue. I didn’t experience the slowness anymore.