My client site is running Volusion an ecommerce site currently running too slow when it comes to page speed. I would like to try add this web.config and do some tweaks to fix those recommendations from GTMetrix.com.
I have done it on site using IIS 7 Server but running in WordPress.
Any ideas on how to improve site pagespeed running in volusion.
You do not have access to modify any server configuration settings on Volusion. Any server access of this nature is locked down.
If you want to improve page speed on a Volusion store, you need to look to page speed optimization techniques that are more focused on reducing file size and http requests such as those suggested by Page Speed Insights.