I just bought a brand new computer for work, I installed AutoCAD 2012 and it takes everytime, when using CTRL + P, up to 30 secs to get just to the plot layout. Then, when I changed the setting "what to plot" or "paper size", THAT takes up to 15 secs. FINALLY actually plotting takes up to about 15 secs again. If I plot out a lot of documents it will take me a long time to finish.
However, changing paper size and previewing with other plotters seems to be fast. It is just one plotter...so I am looking into this but would like your advice.