Hi,
This might be a module conflict. suggest deactivating all plugins except woo, switch to a clean default theme like 2014. Test. If good, add 1 module back in. retest. repeat until conflict identified.
I was having the same issue with this site http://www.wasi.lk/.
First I increased the memory limit to 64mb & deleted all plugin not used & important. Also trimmed down on plugin used eg: Deleted Google Sitemap plugin & using YOAST for sitemap + SEO together.
Try these, and also what varktech mentioned.
Chris
Wasi.lk
You need to optimize your site
With Chris 2 instances of admin-ajax.php and each of them is more than 1200ms and js that came from fbstatic-a.akamaihd.net takes too long to load. Your site has an average of 19.62 seconds to load.
And you anistuhin your site takes 17 seconds to load and one of the culprit is your hosting or server also you need to optimize the jpg files most of them take more than 1100ms and the most time consuming is the kdk.jpg 5953ms
Okay, i asked on my hosting support, they replied like this:-
“The reason for the problem is the large amount of queries your WordPress application executes to the database name database. The root cause of the problem is that your wp_options table has more than 137 000 _transient_ rows.
Apparently your are using a plugin that caches information in the database and this extensive usage leads to timeouts.
You should revise the active plugins and reconsider using the one that causes the issue.
I have checked this further and it appears that the database rows are created by the Woocommerce plugin. I have tried the build in options for clearing the Expired Transients and sessions, but that did not make any difference. As the plugin is vital for your website, I can only suggest you to contact the plugin developers and ask them for assistance or support regarding this matter.”
“You should revise the active plugins and reconsider using the one that causes the issue.’
A way to find the issue is to apply the method previously outlined… – it’s unlikely that it’s woocommerce itself, otherwise there’d be a million+ folks howling in unison.
Okay, i have disabled all plugin except WooCommerce, then installed WP Optimize and deleted all of my Transient options from database using WP Optimize. After that i have visited my site deleting all cache and cookies and after one visit to front-end and login on back-end i now see there are 27 transient options in my database, shown by WP Optimize to be removed. Now, what might be the cause for this??
Check out with Query Monitor to see what’s it’s doing under the hood. Super effective plugin to trace that sort of performance issues
