I like the behavior of Gnome-Shell's Alt-Tab window changer, but there is a slight delay when pressing Alt + Tab, which bothers me. Is there any way to make it pop up immediately, or at least, decrease the delay?
Well, you can change that in the .js file of the alt-tab.
Almost at the beginning of the file, is this line
const POPUP_DELAY_TIMEOUT = 150; // milliseconds
Change it, save and restart the gnome-shell (Alt+F2 type 'r', or logout and login again).
libgnome-shell.so. See this post.
As of 13.10, this setting is now located in