The internet connection is fine, as are all the hops in between. The server itself is replying in a decent time - but its the software (the web server or another part) is running very slowly.
It is chewing on something horrible and the admin needs to give it a good slap on the back to cough it up! :)
It could be that the storage is very full :o
This little capture shows all the hops and pings. Arrows point to the interesting columns :)
Attachment 473037