hm…your website is probably in a blacklist because I have seen more replies by you (on our forums) where you include the website URL are marked as a spam.
to your question about the speed: I would recommend using some caching plugin as you are using quite many images…try the WP Super Cache. It will pretty speed up your website, it’s better to serve to visitor a static page than a dynamic one ;), also the speed depends on what hosting you are, Shared, VPS, Dedicated, etc.
Please use the following in Theme Options -> Custom CSS
Your portfolio is opening to a completely blank page.
Which is most probably PHP memory exhausted.
Please contact your web hosting company, get them to check your error log in order to know what happened.
If it’s confirm a memory exhaust you will need to increase your web hosting memory.