SSD Settings for fast sleep / startup

Hello!

I have a XPS L421X 14" ultrabook. When I bought it the sleep and wake up was very fast, now it's pretty ordinary. Can anyone tell me what the settings are to make sure it's using the SSD properly? I think one of the updates may have messed up the settings. Is this handled with the intel rapid storage, which doesn't seem to be enabled currently, or it is something else, maybe dell specific?

Thanks.