Hello,
My approach to this type of problem is very methodical. I consider myself a scientist, therefore my testing will be as such. I will be using command line tools to watch the speed of the site loading on the back end, as well as utilize external tools to watch the site load and give me ideas as to it's bottlenecks. I can keep you updated as to my findings and clear any changes with you before I proceed. I will provide a report upon completion of what was changed, why it was changed and the impact the change will have.
Thank You,
Jeremy Siedzik