It's not too bad, my favorite photography website http://www.deviantart.com/ where I post images is slower, but that doesn't drive away the huge no. of visitors, content can be great. Of course, internet connection speed is also a factor.
I just found a Bluehost optimization tutorial, and my Google speed score is now past 90%, from the usual 89%, on Bluehost. Watch the video and do as instructed.
And don't forget to activate "Compress the specified MIME types" at "Optimize Website" under "Software Services" in your Bluehost cpanel.
In combination with the best cache plugin I've tried for shared hosting (so long as one doesn't go overboard with too many "unnecessary" plugins), W3 Total Cache, in tandem with Better WordPress Minify, WP Widget Cache and inspite of using a heavy loading Suffusion theme, all is well for now.
Of course, revisits are faster than first visit due to the caching.