libiomp5md.dll takes the majority of the time

This  a snapshot of a hotspot analysis.  I can't make sense of the result. I have looked at the introduction tutorials of intel vTune and there I noticed usually user functions consume larger chunks of time. Here I see that spin time, liiomp5md takes a lot of time. How should I interpret this result? Where can I look for improvement? Any help will be appreciated. Thanks.