Diogostic check and fix

I'm looking for someone to diagnose and fix a problem I'm having with the functionality of my market place website. My website is lagging and not performing as it should and I need someone to run through it and identify where the problem is. This is a high priority issue that needs immediate attention so I'm looking for someone who is fast and reliable and who can work quickly and efficiently in order to get my website back up and running in top condition as soon as possible. Thanks for considering my project!