Question about printing times ( www.thingiverse.com )

Hello all. I am very new to this but it is all very cool to me. I ran into a problem and I am not sure how to troubleshoot it. I downloaded a simple pull string helicopter off thingiverse. After running through the slicer software, the estimated build time is 131 hours. Relative to it’s size this seems insane. If I “run the...