Spline Lines inserted into sketch are slow

When inserting a drawing from AutoCad into a Sketch within a part in SolidWorks the program slows to a crawl.  Can I change the number of points before it is inserted into Solidworks to speed up the sketch process?  Many times I may insert a sketch to use as a templet for the part production.

Many Thanks,

Randy

Skinnermodels.com

SolidworksSketching