One of the most common, and often difficult to correct, performance problems that we see with Joomla is incorrect template selection. There exist literally thousands of templates made specifically for Joomla, and most of them look quite nice, but have some severe performance penalties. Which if left uncorrected can leave a site sluggish; and untimely lead to lower Google page rankings. The problem occurs as most templates are designed to cover a range of template position permutations, which may or may not be present in your site. For example, your site may include a 'left' position but no 'right' position, but your template still has to account for the these.
Our approach to template efficiency is to remove any position blocks which you know you will never use. Likewise, removing any references from the corresponding CSS file for these positions will award further performance gains.
You can often remove 50-60% of the original file size by following this simple rule.
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