TST: turn down speed of sigint generation to human speeds
TST: turn down speed of sigint generation to human speeds

From user-testing on the group we saw:

 - 0.15-0.2 s repeat time hammering the keys
 - 0.02-0.08 s repeat time hammering holding the keys down

Slowing this down avoids a race condition where all of the signal
triggers seem to be collapsed and the handler only runs once.

ericdill/bluesky,ericdill/bluesky