Slow website google site performance same as before your plugins

I have installed smush pro and hummingbird but my website is still slow and google.
37 / 100Suggestions Summary

Should Fix:
Optimize images
Show how to fix
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Show how to fix
Consider Fixing:
Leverage browser caching
Show how to fix
Minify JavaScript
Show how to fix
Minify CSS
Show how to fix

and hummingbird.

Shows that images score 3 of 100