ONLY my site loads slowly

I have tried through and it loads quickly

I have tried loading the site on a different internet connection and it loads fine.

Pingdom tells me load time 5.96 secs w/ 31 requests 6.88 secs w/ 323 requests : 5.35 s Size: 829.9 kB. Rqsts: 42.

I have a very similiar test site which loads fine for me

ALL sites I visit load fine except my main site

I am pulling my hair out over this one! I don’t know what to do

I’m worried that users are having this problem and personally it is taking me forever to update the site add new content etc

Mark M.