makes very slow and blocks slideshow on homepage

if java is enabled then it is becoming impossible to load the site, and my page spped goes down by 19 points for mobile and by 14 points for desktop. the sam is with html, if I check only css, than my speed goes down by for for mobile and by 5 for desktop

that’s … special dddt. what is your site’s URL (if you’re not comfortable posting it here, you can also mail me at futtta at gmail dot com).

thanks for your response, I have sent u an email, now I have plugin installed and I checked html, css, and java

please, check the speed without www

OK, did some tests to start with; pagespeed without AO is 70 mobile and 72 for desktop (just add ?ao_noptimize=1 to the URL to test for yourself). With AO the score becomes 66 mobile and 79 desktop.

The main problem (and cause of the lower mobile pagespeed score) is the fact that you probably don’t have a page caching plugin (wp super cache or something similar). Without a page caching plugin Autoptimize has to perform some work for both JS and CSS to see if there already is an optimized version available. In your case this is made even worse by the fact that you have a plugin that is putting nonces (random values, a kind of one time pasword) in javascript, which means that most of the time for each page request the javascript has to be aggregated and optimized.

The solution would be to install a page caching plugin (WP Super Cache for example) AND to exclude the javascript that contains nonce’s from being aggregated in the first place (under “advanced options”, add “nonce” as string to javascript that should not be aggregated). While you’re in there, you’ll probably also want to jquery.js and flexslider, as that will fix your slider issue.

Next to that, I see you’re also using mod_pagespeed, that might … complicate things (the combination of both optimization techniques is untested and might be one of the reasons for the slowdown).

hope this helps,
frank

Hi, thanks for your detailed explanation.

I am using caching plugin, super cacher, will try without page spead

Are u checking with google page speed? It is 63 and 76 right now without www

and 66 79 with www, I had these speeds all night trough

I had 66 and 79 with autoptimize on www indeed.

So, if I have wp super cacher, you suggest me to turn of mode_pagespeed and then retry it?

I have turned off the mode_speed and checked again, 63 78 with www and 60 75 without www

I have cleaned the cache, refreshed the plugin settings, now have 58 75 without www, 63 78 with www

but did you already install a page caching plugin? this is the single most important thing to get working in order to tackle the “server response time” problem.

I have deleted the plugin ?? thanks for your support!

I had it installed before autoptimize and have it now