@Saurabh, Tushar Welcome to Microsoft Q&A Forum, Thank you for posting your query here!
DiskSpd is the recommended tool for benchmarking disks on Azure.
It would be good to know the performance tier of the Azure disk, and the results when then customer follows guidance here:
That way we can understand whether the Azure disk is performing as expected.
This resource may also be helpful: Troubleshoot Azure virtual machine performance on Linux or Windows - Virtual Machines | Microsoft Learn
Please let us know if you have any further queries. I’m happy to assist you further.
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