With each release of CRM since 2013 it seems that the UI team is adding more and more "unused" space into the form. The worst example is if you use Quick view forms on a form. The way that they are rendered on the form is just plain ugly. It is not aligned with the other fields and views on the form. If you disable the labels on the quick view form it leaves a lot on empty space on the form that shows the quick view form.

Also the vertical space between sections is way to much.