Acceleration is needed to get into position. Maximum deceleration is needed to get into position ready to shoot.
Here is a short video on doing a Left - Right Drill describing not only getting to a shooting position, but getting to a position 'ready to shoot'. This requires getting to position and decelerating the body, prepping the trigger, and breaking a shot as soon as there is acceptable sight picture.
The left right drill is one of favorite drills. It works exploding out of position and decelerating into position ready to shoot. When decelerating near the ferns, they provide limited visibility so after getting into general position we have to do small movements to get the body into position to see the target.
This is an integrated drill where we are decelerating in a low port position ready to shoot and accelerating to a second shooting position. We have to shoot in high volume to make gains. In this drill we know where there is a target when we approach the port so our gun is up ready to shoot. The second video is where we are presenting the pistol when we come into the port.