Hey there mazetia,
Hope you're well! :)
This pagespeed result shows you some recommendation on how to optimize your site. I suggest you follow some of it ( if possible) : <a href="https://developers.google.com/speed/pagespeed/insights/?url=http%3A%2F%2Fwww.haithsg.com%2F
">Google PageSpeed Result
You can also use reduce image size plugin may help you: https://wordpress.org/plugins/tags/smushit - Pick one you like.
Currently Im planning to add in Videos of our events and performance of our Emcees.
I suggest you use 3rd party video hosting provider such as youtube or vimeo for the video. :)
Give this resource a read: http://codex.wordpress.org/WordPress_Optimization
Hope it helps! :)
Take care,
Calvin