I compared my Wordpress vs Pritlog installations with the same number of posts and similar low profile themes. This wordpress installation does not have many plugins enabled.
The average load time was:
Wordpress: 1.7 seconds
Pritlog : 0.7 seconds
Maybe the advantage that is in favor of Pritlog is the simple 1 file script, no MySQL, no theme/plugin engine etc. But this was impressive to me. I think, I will just shut down my wordpress installation completely.