"is fast" is subjective and hard to make recommendations for, there are many things that can be opti
"is fast" is subjective and hard to make recommendations for, there are many things that can be optimised for that fall outside the control of R2 (e.g. not loading so much JS/CSS, optimizing execution of scripts, all things pointed out on that page)
In terms of serving files from R2, the fastest method is to use the CDN cache either by Custom Domain or by Worker with Cache API: https://developers.cloudflare.com/r2/examples/cache-api/
Yes this will not be as efficient as an external origin with Tiered Cache, however it is the best available with R2 at the moment due to the aforementioned limitations. If the cache is setup fully for all files, the speed will depend on whether the resource is cached in the local datacenter that the user is hitting. The more traffic you get, the faster the site becomes when it relies on cache. Increasing the cache TTL will keep those caches around for longer but increase time to revalidate when you push new updates.
If you are hosting smaller assets you could potentially consider KV or host the whole website on Cloudflare Pages which should be better optimised for web assets. Pages comes with intelligent invalidation of assets when you make a new deploy and has its own internal caching system to keep sites as fast as possible without having a lag to deploy.
There is a guide on choosing a storage product here: https://developers.cloudflare.com/workers/platform/storage-options/
In terms of serving files from R2, the fastest method is to use the CDN cache either by Custom Domain or by Worker with Cache API: https://developers.cloudflare.com/r2/examples/cache-api/
Yes this will not be as efficient as an external origin with Tiered Cache, however it is the best available with R2 at the moment due to the aforementioned limitations. If the cache is setup fully for all files, the speed will depend on whether the resource is cached in the local datacenter that the user is hitting. The more traffic you get, the faster the site becomes when it relies on cache. Increasing the cache TTL will keep those caches around for longer but increase time to revalidate when you push new updates.
If you are hosting smaller assets you could potentially consider KV or host the whole website on Cloudflare Pages which should be better optimised for web assets. Pages comes with intelligent invalidation of assets when you make a new deploy and has its own internal caching system to keep sites as fast as possible without having a lag to deploy.
There is a guide on choosing a storage product here: https://developers.cloudflare.com/workers/platform/storage-options/
