installing hyper V Server on a slow drive but datastores on a 1500 RPM SAS

If I install hyper V on a small slow dive eg 60gb 5400 RPM Sata but have the DataStores on a 1500 RPM SAS drive

will the slow drive for the hypervisor slow the access down for datastores?

I plan to have 3 win2012r2 separate server installs on the sas drives.

Thanks