Word of Warning for Overwolf users.
If you open the Overwolf with the Hotkey (Default is Shift -Ctrl-F1) it will for some reason pop your throttle to half speed. Be careful.
Also, if you mark yourself away in Teamspeak, when you come back and Unmark yourself away (This is with Hotkeys in Teamspeak) it will for some stupid reason Open the Overwolf Browser. This will happen if you have not created an Overwolf account. I have had this happen on three machines, in 2 other games with the last 3 versions of Teamspeak.