In Servebolt Optimizer for WordPress, under Servebolt Optimizer -> Settings, you will find a setting named Add automatic version parameter to asset URLs. This feature adds a timestamp query string to all static assets which results in automatic cache busting. This way you will immediately see new versions of static files, like css and javascript, even if you have static caching on in the Control Panel.
You can also enable this feature using the following WP CLI command
wp servebolt general-settings set asset-auto-version true
This feature adds the same technique as described in our article How to ensure static resources in WordPress are updated correctly when using our static cache, but it does it automatically for all your enqueued assets.