^ This. Otherwise key detection seems slow. I hate when I press a key and move 0.25 seconds later then release the key 0.25 seconds too late and move 2 spots instead of 1.

Also, if you have a game where there's no real-time actions needed, such as a top-down view RPG, replace Getkey->K with Repeat K:Getkey->K:End. When you start moving you'll move immediately. (assuming you followed Freyaday advice).