vimtyper is a free typing game for vim users. A target lights up somewhere in a real code buffer; get your cursor onto it with as few keystrokes as you can, then the next one appears. It's touch-typing practice for navigation instead of prose — the muscle memory that makes a modal editor fast.
Most vim speed doesn't come from arcane commands — it comes from reaching any character on screen without thinking. Deliberate practice against a timer builds that reflex far faster than day-to-day editing, the same way typing trainers beat “just typing more”.
also here: vim speed test · nvim speed test