ethstorage sync delay increased after Fusaka upgrade #485
Description
Before Fusaka:
After the upload transaction finished on Sepolia, ethstorage could usually read the data immediately.
Sometimes there was a short delay of a few seconds, but almost never more than 10s.
After Fusaka:
No matter whether the blob is uploaded using proof or cells proof mode,
Once the upload transaction is confirmed on Sepolia, ethstorage now usually needs ~35s before the data can be downloaded.
In some cases, it can take 50–60s.
