I have a new Windows 10 running on a brand new Dell xps13 i7 6500 machine. It is a touchscreen enabled model, which on normal use is very responsive. However, I've noticed that if I leave the touchscreen for a bit (say 5 minutes), it seems to go to 'sleep' - the screen itself remains lit and everything appears normal but...

...if I interact with it after it has been sitting unused, it takes about 5-7 seconds to respond to the first touch. But thereafter starts responding like normally.

It's a month old PC with only some Windows updates installed other than what came pre-installed.

Anybody else experience a similar issue? Any suggestions on where to look further to resolve this?