We are running the Business Plan of Cloudflare. All settings are activated except for the rocket loader.
HSTS has also been submitted.
WP Rocket is installed on Wordpress and fine-tuned. On server side Redis is installed and working well.
For the issue is when Cloudflare normal caching is activated : https://gtmetrix.com/reports/nhglobalpartners.com/qlQ5N0f7
If you look at the Waterfall some asset are taking up to 500 ms to load despite being very light.
I did another try by using full page cache and cache cookie bypass and then it gets worse.
Site load speed goes up to 16 sec whatever the data center i test it from (europe - usa - latin america).
When normal caching is activated we are also facing very strong discrepency between data center despite being hosted on AWS Edge Point.
It would be great if someone could point out what could be the issue.