GAS drawing takes approx. 30min to 1 hour for just ploting preview and creating the pdf file.

Dear Bentley Family,

 When we work on our any General Arrangement Skid(GAS)'s ISO drawing, the drawing file takes approx. 30min to 1 hour for just plot preview and creating the pdf file.

 Also after the creation of pdf,sometimes few parts are missing in the pdf.

 The sample pdf is attached here.

 Please let me know any solution/setting for fast ploting and fast pdf creartion for such drawing.

 Waiting for your earliest reply.