Note that after the 1st reference, the css files (no matter how many you have) are cached in your browser and no further http requests should occur. Hence after the first access to a site, the penalty is over for further navigation. You might see 1/2 second improvement on the first access, but you will see none in subsequent accesses.
Also note that this is not an automated approach and that every upgrade will require you to analyze what’s changed and then to repeat this process. You should evaluate the effort applied for the value gained.
Li Pop has been very gracious in providing these steps to help improve the peformance of various sites (note that every site is probably different based on graphics used, number of blocks, filters, etc.). It would help if the speed improvement of each step were identified so that merchants can make an effective determination on the value received for the effort applied (repeatedly).
Hi thank you for the hints, I am at the first step now (only the gzip) and the website is really faster, just only with the gzip compression. But I have a problem. I have some attachments (.pdf files mostly) ain the product page and with the compression i’m not able anymore to open them or it requires more than 5 minutes to do it, even small files. I had to remove the gzip compression at the end of the day, and the attachements opened perfectly…
I had not the mod_deflate originally in Loaded Modules, but I followed the procedure and it worked.