
We could only get this speed for your site. Please see the requests these are 167 which means your JS and CSS files devided are a very high number. While merging the JS files to decrease your requests, your layer slider stop working, i checked with some other plugins also but this is a known problem with layer slider's dynamic data grabber.
We are in touch with Autoptimize in case we can find some solution for now your site is performing much faster than before please check thanks