Evolve Theme- modify bootstrap slider

hi,

I am new to using the Evolve theme and bootstrap sliders. I don’t like how ‘space’ the slider takes up on the screen- too big. Can I make the slider less in height and width, not just the images. (If I use smaller image there is an ugly space around the image designating the dimensions of the slider.)

I also want to make the entire page narrower (increase the side margins).

Would someone(s) be so kind to help me with these issues? Here is my website: https://www.theflyingbobbin.com