Avoids prompt_pure_state_setup check with config option

[aanzolaavila]

Checking inside prompt_pure_state_setup takes quite a long time to execute (happens to me quite a lot in other computer, where it takes like 4+ seconds just to boot the console), I'm adding an option to check whether to do this check or not.

Before

After

[mafredri]

Would you mind running this on the slow machine (execution times will suffice, no need for all output):

time who -m
time who

And the output from this command:

ls -lha /var/run/?tmp*

I'd like to figure out why these commands are running so slowly on your machine. Does it use spinning HDDs?

[sindresorhus]

I would prefer fixing the underlying issue than adding more options.

[aanzolaavila]

Hi, this is the output from my slow computer

[sindresorhus]

Closing as it should be properly fixed. We cannot add options for everything. I suggest moving this to an issue instead.