I was reeled in by cheap, unlimited hosting. (Well, kind of cheap apart from having to buy a year upfront.) The moral of the story is it's awful. I'm trying to find a reason for them to let me leave and I've seen on there site they say "fast a reliable hosting" (big lie).

Whats the best way for me to check the server speed response time so i can use this in my argument and hopefully be let go ?

This has nothing to do with page speed, only server speed.