Is there some problem with the MacOS port of (Live) TeX? A two page LaTeX test document on my old Dell Optiplex (Q6700 cpu) with Ubuntu 10.4 takes 0.033s, two

Is there some problem with the MacOS port of (Live) TeX? A two page LaTeX test document on my old Dell Optiplex (Q6700 cpu) with Ubuntu 10.4 takes 0.033s, two orders of magnitudes less than he experiences. The 539 page reference manual for the project I'm working on takes 3 seconds to format.