SmartSDR v1.6.21 working on lesser hardware or is it Windows 10?

I was busy with a move and fixing up my new house so it's been a while since I used SmartSDR. Last week I got the new ham shack set up to the point where I could get the Flex 6500 back on and upgraded to SmartSDR v1.6.21 on my main computer.

After this, I gave v1.6.21 try on an i5 laptop that didn't work with the earlier version (1.4.xx) running windows 7. Since that time it has been upgraded to Windows 10. I was happy to see that SmartSDR now works fine on the i5 LT.

For another test, I decided to installed SmartSDR v1.6.21 on a 10" tablet running windows 10. It has limited resources, 2 GB of RAM and an Atom quad core CPU. I was surprised at how well it ran. Any problems were related to using the touch screen & solved by using a keyboard with a touch pad.

It looks like the newer version of SmartSDR uses less resources or could the improvement come from using windows 10? Has anyone else noticed this?