I cannot see the full names of my fields on a normal laptop screen but there is a large blank space to the right of the records wasting space.
This occurs with the regular & NextGen Lightning Components.
A previous comment about this problem:
I'm not sure why, but the component is being rendered with the css class slds-medium-size--1-of-3 on the issue. If that could be deleted, it takes up the full width and actually looks decent.