Read and write on folder with too many files are very slow

rclone also has no concept of creation time.

as far as i know, with aws s3 and its many clones like wasabi have no concept of creation time.

and for what it is worth, aws s3 is FLAT object storage, no real concept of folders.
folders are emulated, just an abstraction as documented at
https://docs.aws.amazon.com/AmazonS3/latest/userguide/using-folders.html

you might try to use
https://rclone.org/docs/#use-server-modtime
i think but not 100% sure, in effect, the upload time is the creation time....

https://forum.rclone.org/t/keep-the-origin-creation-date-rclone/8373/8