I browsed your site, switched languages and everything looks super fast. Can you please explain that when exactly that load issue happens?
However, I believe following need to be fixed as per your debug information:
IMPORTANT: Take full backup of your website and database beforehand. It is highly advised to try the following on a staging/dev site first, so your live website isn't compromised.
- Fix “WP Memory Limit” to at least 128MB while 256MB is recommended. See https://wpml.org/home/minimum-requirements/ for detailed information. You can set this in your wp-config.php file by adding following code: