MSA replication

Hi,

Can anyone tell me what might the best RPO be expected when using MSA replication between two MSA 2040 arrays.

Then documentation states that the replication can be scheduled at a minimum of 60 minutes, can this be reduced in any way to say 30 or 15Mins?

We are considering implementing MSAs in our environment but the  replication RPO may be a deciding factor.

Thanks in advance,

D