Use R2 for store json object

Hi guys, I’m try do simple demo with worker and R2.
My purpose is put and json object to R2 in every 3 seconds and read it from client (similar cache).
Is R2 fit for this case ? I tried worker with KV, but it still have delay for read the result immediately after writing.
Btw: can you guys suggest any way for it ? (best if schedular of Cloudflare support for seconds)