WP Smush Pro was working well for me on shared hosting, but for some reason when I moved to a VPS and updated the plugins. I have been plagued by slow load times on pagespeed and webpagetest.org
Bulk of it comes from a server wait 30-40 seconds for Time to First Byte.
Apache slow logs show Smush Pro coming up pretty often and after disabling it my TTFB dropped to 2-3 seconds
Anyone know why this would be?