What happens when you use a three-finger tap on your Mac’s touchpad to look up a word? In olden times, it would bring up a dictionary definition, instantly. Today, it probably doesn’t do anything. Not for a few seconds at least. Or rather, it pops up a panel right away, but then it takes a few seconds to load whatever Siri reckons you might be looking for.
So, how do we stop this madness? Easy. We switch it off in the Mac’s settings, aka System Preferences.