issues with the mic using cortana?

[sundry]

Anyone having issues with using "hey Cortana"? I have to be very close to the the phone and speak fairly loudly several times for it to respond to hey Cortana. It often doesn't pick up words and s's. I also have time 950 xl and it will respond much better several feet away.
Could this be a faulty mic on the x3, or It's the mic that much better on the 950?

 

[sundry]

Upon further testing it appears as if It's just optimization.
If I long press the search icon it works just fine