Apparently, keyboard latency has gotten measurably worse over time– computers in the 1970s had faster keyboard input that we do today. The post does a good job of debunking several of the most common BS claims made by “gaming” keyboard manufacturers, too. They aren’t any faster than regular ‘ol consumer-grade keyboards, and in some cases slower!
Most keyboards add enough latency to make the user experience noticeably worse, and keyboards that advertise speed aren’t necessarily faster. The two gaming keyboards we measured weren’t faster than non-gaming keyboards, and the fastest keyboard measured was a minimalist keyboard from Apple that’s marketed more on design than speed.