Is proshow producer program eating my computer speed?

Hey Experts,
I need some help with my ProShow producer program. I was starting with my project and uploaded some videos and music into the timeline. After a few minutes of editing and motion setting, my computer started to slow down extremely slow. I checked my task manager to see how much memory it was using on my project. When I went to the performance tab my computers usage was just around 50%. What can I do to maintain my computer speed?
