I use Widgetlocker with Zooper clock and other widgets on my lockscreen. Sometimes I turn on my phone just to check the time with a glance. Unfortunately it takes zooper anywhere from a second to 15 seconds to refresh the time. So several times I have thought the time was 11:00 for example, but it was actually 12:00.
I ended up layering a UCCW clock widget over my zooper just to get the time! Has anyone found a way to fix this? This is on a speedy Samsung s4 by the way.