Don't worry with days on average on the top. Just optimize large site recently, the site is very very slow and took a lot of time to optimize it. I don't care with the work time, the important thing is make you get best result and happy.
Why Decreasing Page Load Time Can Drastically Increase Conversions?
Fast Website = Better User Experience = Better Rankings = Improved
Traffic = Better Conversions = More Sales
Google & Yahoo concern
with this, bring it to their lab and create standard called PageSpeed and YSlow.
I will increase PageSpeed and YSlow score and optimize
loading time by:
✓ Backup your site
✓ Identify plugin that slowing you down
✓ Setup best config for your html, css & js
(combine, minify and position)
✓ Minimize http request
✓ Optimizing Images to Lossless
✓ Update your theme code if
needed to speed up your site
✓ Enabling gZip Compression
✓ Caching Your Pages To Serve Static Content
✓ Optimizing your homepage to load quickly
✓ Optimizing your WordPress database
✓ Control the amount of post revisions stored
✓ Utilizing browser caching
This will not affect any
site features or functions. It will be done professionally.