Is there a registry key that determines the increment/decrement of volume adjustment?

So I moved to windows from being a long-time mac user, and so far, so good. So much customisability it reminds me of moving to Android from an iPhone. The freedom!

But all is not perfect in the world, and I think I can put up with most that is mostly hardware-related; like the trackpad and stuff.

But I'm dead sure the volume increment is software design of Windows 10 and it's got to be somewhere in the registry. I just cannot stand having to press 50 times, or hold it for 5+ seconds. I get some people love the 2% precise control of the volume, but honestly, I wish it was 5, or even 10%. Is there any way to adjust the increment of the volume?

THanks!