Remove these as well, they're quite useless

Category SEO meta tags
Auto Tweet
SEO Love
ili.tl Twitter Poster
WP SEO tags
WP Spolier( dont remove this if its important for your blog)

EDIT:

See this

http://gtmetrix.com/reports/releasescene.org/DtGqrWQg

and this

http://pagespeed.googlelabs.com/#url...g&mobile=false


Looks at the factors that have high priority and try fixing them.