Theme

To test your theme, temporarily switch to the default WordPress theme

and navigate through the site. If there is an improvement in

performance, the problem is most likely related to your theme.

Images

Another front end cause of slow site performance is image size. The

file size of your product/blog images directly impact the spead at which

you site loads. A tool like WP Smushit will help you optimize your images within WordPress.

Also, please refer to this WC Image Guide.

It’s possible that the site sluggishness is related plugins. To test,

deactivate all plugins and To narrow in on the specific cause,

reactivate each plugin one by one until you find the culprit.

It might be necessary for you to increase the WordPress memory limit as explained below

1. Edit your wp-config.php file and enter something like:

define('WP_MEMORY_LIMIT', '96M');

WordPress memory can be different to the server – you need to set this regardless of server memory settings

2. If you have access to your PHP.ini file, change the line in PHP.ini

If your line shows 32M try 64M:

memory_limit = 64M ; Maximum amount of memory a script may consume (64MB)

3. If you don’t have access to PHP.ini try adding this to an .htaccess file:

php_value memory_limit 64M

4. If none of the above works then talk to your host.

Using a caching plugin is wordpress another way to optimize site performance:

With these caching cloud hosting plugins you can also use a Content Delivery Network (CDN) and/or Cloudflare to further speed up your site.

Finally, it would be advisable for you to contact your hosting

provider to discuss the impact your hosting plan has on your site

performance.

We’ve included some of our recommended WordPress hosts below:

Site analysis:

Ninja tips:

Do not force wordpress hosting SSL on all pages, only force SSL on domains pages that NEED it.
WC has options to do this automatically (Force SSL and Unforce SSL)
Offload all unnecessary functions from
your web server to another server or third party service. such as email

being sent through aws wordpress hosting a dedicated SMTP provider

Resources: