Ezoic’s caching app will only override your current caching rules if you set it to. To override your current caching rules and to use Ezoic's caching, do the following:
1. Navigate to 'Leap' > 'Caching'
2. Click ‘Edit’ next to ‘Override Cache Control Headers’
3. Select ‘ON’ from the drop down menu on the right hand side
4. Save the change
We also have a video on Ezoic caching best practices: