Martin ran an experiment to find factors that increase the loading time of his webpage. He tried the following permutations:
- WP-Cache enabled, Google Analytics off
- WP-Cache enabled, Google Analytics on
- WP-Cache off, Google Analytics on
- WP-Cache off, Google Analytics off
The site loading time decreased significantly when he disabled WP-Cache WordPress plugin and commented the Google Analytics code. His suggestion is:
Turning off wp-cache reduces the loading time but increases the load on the server because mysql requests are not cached anymore. This could lead to troubles for sites that face lots of visitors, e.g. if your site makes it on the digg frontpage. I would suggest to turn on wp-cache again if that happens to be able to handle the load.
Related: Why is your Blog Slow ? | How to Make Your Web Pages Load Faster