WAV Import: Faster/Safer window, how can I change this setting again?

This window: http://prntscr.com/wt23z4

It’s not appearing to me on another instance of Audacity I want to import a wav on, I’d like to change it to “Faster” but the window is not appearing to me when I drop a wav file, it’s just importing it (doing the “Safer” option). I can’t find this setting in preferences, where is it? Thanks in advance for the help. If the info helps, the instance where it doesn’t show up is a zip version of Audacity 2.42 rather than an installed one.

The “Faster” option has been removed because it was found to be intrinsically flawed.