Datasync to copy data from one S3 bucket to another S3 in the same account

Hi All, We are looking to copy approx 500 TB of Data from one S3 bucket to another S3 bucket in the same region. Do you think that DataSync is the fastest and best available option for the transfer? And how much time will it it approximately to copy 500 TB of data? If we have to copy 7 folders, do we have to create the 7 tasks and can this impact the maximum throughput which 10 GBPS. Thanks Rio