Ubuntu 18.04. Due to the ergonomics benefit, I use two bluetooth keyboards at the same time for the same local machine. Under Ubuntu Wayland environment, typing works perfectly. Key strokes appear at once on the screen. But on Ubuntu (Xorg) environment, if only one keyboard, it works. But typing with two keyboards, left hand with the first keyboard, right hand with the second keyboard, display of characters on screen are delayed. Behavior is like ssh over slow network to a remote machine.
So now, I use Ubuntu Wayland for typing with two keyboards to work. How can I fix it works for Ubuntu (Xorg) too? Because I depend on Ubuntu Xorg for some applications like Skype, VMWare, etc… to function correctly.