My question is very straightforward, Why XeLateX is slower than pdfLaTex, and some times has a long pause before running the main file?
I know XeTeX/XeLaTeX has to load a lot of packages, but why, once a while, it stops for a long time after the last file loaded?
and further more why after starting to compile the pages, the average speed of XeTeX's page processing is slower than the average speed of pdfTeX's page processing?