Too much detail in 3D model and 2D drawings

Hi. I am sorry if this question has been asked before.

I recently got a 3D model from Kohler engine. It has so much detail, really slows my computer down. When I bring the model into 2D drawings, it takes ages to work with and save. Is it possible to make the model show less lines in 2D drawings? Thank you.

Best regards,

Ted

SolidworksAssemblies