Magento has very nice interface, but it seems to me very slow sometime. I wonder if it is because I am in Hong Kong and the server is in US. However, sometime it is really unacceptable slow to me.. so I was trying to figure out how to improve the speed of Magento. One way is to enable mysql query cache, but I find my server’s mysql already turn on the query cache, so it is not the cause. Then I find you can enable compressing data to send to your client, and it seems my Magento store is improved a lot. You may try what I have done to improve your Magento store. 🙂