As in tittle, I'm speedrunning Sludge Life and to start LiveSplit I need to click on it and then click the button binded to start the speedrun, is there any possibilty to repair it? I was looking for anything and I didn't found anything. Also sorry for my bad english and all of grammar mistakes but I think it readable.

Enable Global Hotkeys in your settings so all key presses will register when LiveSplit isn’t in focus.

Yep, thats the solution.

Ok, thank you very much for help.