Today I had to use mousekeys feature and tried it but it  was very slow and unsusable, can I incerase the speed of my cursor while using mousekeys?
mousekeys is too slow in gnome3 fedora
gnome;gnome3;mouse;access control
The xkbset command can adjust the mousekeys speed. I use this setting:xkbset ma 50 20 20 30 300which accelerates fast enough to get across the screen in reasonable time, but also starts out slow enough that I can tap a key and get a single pixel movement. Play with the numbers until you find something you like.