Unity games take over a minute to load/respond, no matter how small the game

I am teaching many people how to use Unity, and when I load even the smallest demo (a cube with a rotation script), the "game" takes over a minute to load. Every time for the first time. The second run is immediate. What is happening?

My system is a relatively new Windows 10 system, and this issue did not happen before summer.

 

do you mean, a compiled game build, or in the editor on first time play mode? Awhile back, before i upgraded my computer, i was experiencing similiar slow downs in editor play modes.

 

"relatively new Windows 10 system" can cover a wide variety of specs.

This brand new Windows 10 machine for example would run Unity like complete trash
https://www.amazon.com/ACEPC-T8-x5-Z8350-Graphics-Computer/dp/B07D9YX3W6

It could be any number of things. Maybe the machines have low RAM and the first time you hit play it is swapping gigs of data from RAM to the swap file to make room for what Unity needs - which can take a while depending on the storage in the machine too.