You can dump your tables to a .html file on a schedule and then serve it via a CloudFlare cache with an expiry so that your reports are generated once every 5 m

You can dump your tables to a .html file on a schedule and then serve it via a CloudFlare cache with an expiry so that your reports are generated once every 5 minutes and the first request is served by your server then it's served via the cache until you refresh it.