I am sorry to hear that, but from my experience(s) this or any other similar combination “with cache” cannot work while having the “eZoic” ads (even the WordPress plugin which itself is codded to disable and prevent all the Caching plugins to work for WordPress and other Cache options setup at Cloudflare).
Here is my post about the files where the above is specified:
Regarding WP Rocket, kindly may I ask have you checked the steps from the below articles?:
Additional optimization features implemented by caching plugins such as WP Rocket, W3 Total Cache, WP Super Cache , WP Fastest Cache, LiteSpeed, Swift Performance Cache, SG Optimizer etc. must also be turned off (note that caching can be left on unless you are WordPress integrated, in which case this should also be turned off unless you are using one of the three italicized plugins).
While using only “eZoic cache”, here is the link how to setup propperly (hopefully):
To be more confused, back in 2019 eZoic stated from this article:
WP-Rocket is compatible with Ezoic. When used properly with Ezoic nameservers integration, and Ezoic’s caching app, sites can often see considerable improvements in website speed.
Meaning, you would have to integrate Cloudflare through eZoic, change your domain nameservers to their eZoic nameservers, and not using any WordPress cache plugins, and somewhat it should work just like that?
In 2019 one statement, 2020 second, 2021 third - so I really do not know if this actually works