Time Measure is one of Details! most important features because it affects the way the data is collected. It also allows you to dictate your mouse wheel-speed which will affect how fast you scroll through the DPS bars window. For instance, under options, you can choose to animate your damage meter bars (or not).
Details! Damage Meter allows you to change the appearance of your meter bar in ways that can either be superficial or very useful to your playstyle.