In all the training classes that I have taken, the one common statement by the pros;

"No matter how good you are on the range, in a real world situation, you can guarantee that your accuracy will get cut in half and your time will double."

Pat McNamera - [paraphrase] "You are always training. Keep pushing yourself to the point where your speed increases to the point where your accuracy starts to suffer. If you are hitting the "A" with every shot you are not going fast enough. If you are all over the target, slow down. Do not just practice what you are good at. Do the drills that you hate."