So like for example, today’s daf took about 3 minutes.
And that included:
Remembering that a niddah falls to yibum because it isn’t domeh to an achos isha, i nami because darchei noam.
Wondering why tosfos didn’t ask about a yevama who falls on yom kippur and according to rabi akiva.
Trying to remember whether a chayvei lav falls to yibum according to rabi akiva.
Remembering there’s a tosfos on 9a that has a teima about it, and looking it up and confirming that chayvei lavin don’t fall.