Reduce MPIO Path replacement/failover time? (ME4 Series)

Is anyone here aware of any Dell recommended settings for decreasing the amount of time Windows Server takes to failover to another available path? I have come across a few things (unrelated to Dell) that suggest making various registry edits to achieve 1 second path replacement! In my testing so far, it takes 30 seconds regardless of what MPIO settings I have configured (Set-MPIOSetting). We'll be deploying a ME4024 very soon.