I didn't realize how bad input latency had gotten in general until recently when I needed to boot directly into a terminal. Sometimes I could swear the character appears on the screen before I even hit the key. It's a weird feeling, but I would like more of it.
A few months ago I was installing Debian on a desktop, and there's this one part during the installer where it prompts you for some information before your desktop is ready to go.
The input processing was so fast it was stupid. It somehow felt even faster than xterm which is already so much better than just about any app on any OS.