Long 'Time to first Byte' thus very slow load on website

Hi guys,

I’ve almost finished with a wordpress blog that I am working on at:

https://www.ic-events.net

I have a problem that when going into an event, I get the following happening:

1. The page loads incredibly slowly (8-10 seconds) and from looking at webpagetest.com it seems the time to first byte is majority of the time at around 7 seconds.
2. The javascript acts late and you see the slider’s components for a split second before the page fully loads.
3. I tried the twentyeleven theme but since a lot of the functionality is in the theme, twentyeleven just came with a blank page although it worked quickly

-I’ve turned off all plugins except Advanced Custom Fields since the website uses this plugin for repeater fields and such.
-When i turned off WP String translation, the page appeared quickly but the javascript didn’t kick in for the 8-10 seconds
-I’ve taken off the WP-slider but that didnt change anything
-checked for javascript errors

All of these things haven’t made a difference.

Any ideas guys?

Thank you