If you want to have a more relaxed swing than you should let the ball do the work, i.e. don't pull the ball down into your backswing. Also it looks like your timing is late which is causing you to not get out of the ball as well as you could. Additionally, I would suggest a steady or rather, an approach taht is all the same speed. It looks like you take a step then take one or two stutter steps and then start your last two. It seems like you technically have a two step approach. I would suggest that you keep your steps the step length and speed so you don't have to start and stop, causing you to muscle and generate force. You can generate just as much energy without those strutter steps. I suggest watching TJ or Ken Simard. They have relatively fluid approaches and you play kind of like them. Lastly, it looks like you might be bending your elbow at your release to get more on the ball, but I can't really tell from the video.
Hope this helps.
Be like water making its way through cracks. Don't be assertive, but adjust to the object, and you shall find a way around or through it. If nothing within you stays rigid, outward things will disclose themselves.