For applications developed natively, the response times would be expected to be quite good, but fewer applications are developed natively now including things that might seem like they otherwise would be. Notepad, for example, is now based on UWP.

UWP creates native Apps though?

twas always thus, software development is gaseous in that it expands to take up all the area it is placed inside, this is both by the nature of software engineering taking the quickest route to solving any action, as well as by design of collusion between operating system manufacturers (read Microsoft and Apple) and the hardware platform manufacturers they support and promote. this has been happening since the dawn of personal computer systems, when leapfrogging processor, ram, hard drive, bus, and network eventually leads to hitherto improbably extravagant specs bogged down to uselessness. it’s the bane and very nature of the computing ecosphere itself.