Very slow performance on SQL 2012 clustered on Windows Server 2012

I'm setting up a production environment with SQL Server 2012 SP1 (Clustered) and SharePoint 2013.

it turns out that the clustered SQL Server is much slower than the development machine, where is the production specification is way higher than the development, I've test the performance by running a simple query on both of servers and simple insert statement.

I check the performance monitor for the server, i found out that there is no load on the Memory or CPU.

Could it be a SAN storage or a Network issue, how can i check?

Is there any tool that can help? or if anyone faced the same issue.

Appreciating any help.

Best,

MI