No, your 4 skills have cooldowns, meaning you must decide the best time to use them, not just spam in an unthinking manner. Clicking only involves however often you want to change your movement location or target.
Each champion is different, some requiring more or less precision, prediction, and timing. With over a hundred, there's probably one in there to match anyone's speed.
You might check BWAIDowngrader as well as there might be more modified menus in there including some additional multiplayer ones. These menus go all the way back to 2004 and were some of my first modding. I see them turn up all the time in other mods and on youtube video. It's possible they don't even realize they have been added to their SCraft if they used the downgrader.