There are so many errors, image are not optimized and some links are returning 404. eg:
http://julietloves.co.in/wp-content/uploads/2016/08/55-1.png
http://julietloves.co.in/wp-content/uploads/2016/08/TAG-168×42.png
I will recommend you to optimize all images using optimizilla.com and re-upload it. After that install “W3 Total Cache” it will help fix server response time issue. howlthemes.com/wordpress-caching-w3-total-cache-setup-guide/
Still there are lots of issue best solution is to change the theme.