I have just made a change to your team photo slider. Essentially i resized the photo outside of wordpress to 1000 x 500. I also increased the height of the slider to 450. If you want to descrease the height of the slider back to it’s default size then you will need to crop the photo some more ie. crop the teams legs off and then re upload :)
This is because of the proportions of the photo. Hopefully that makes sense :)
You should also resize the other photos if they are the same size as the team photo – i.e 2000 pixels wide – as they only need to be 1000 pixels wide and they will load more quickly if smaller.