The 10 seconds appears to be the timer for use in "unsafe" locations. I think it is intended to be a delay to prevent it from being misused in some manner. In "safe" locations, those conditions don't exist, or they don't care.

I have never seen a setting to change that.

haelgaan wrote: »

"Alt-F4" will quit with no delay

I have been known to do this, and that includes both Alt-F4 and turning off the PC or console.

However, I always keep in mind a couple things. First, it leaves the character logged in for a while. It takes a bit before the server gives up. During that time, the character can be killed, and pets and companions will defend the character. Logging out near a wayshrine reduces the problem of getting into combat, and possibly dying.

The other thing is that addon users who use addons that store data may not have that data stored. For most addons that store data, that happens after the logout and before the character select. Maybe not an issue, but for some, it could be. Note that ZOS has things they write out locally, as well, so it isn't just something that can happen on PC. It is more likely to have an impact if using addons on PC, though.