I am bad at pacing and I am bad at plot. So I kind of just run scenes, if I'm being honest. You're in the bank, and it gets robbed, what do you do? A riot is on the verge of breaking out, what do you do? You've been hired to hijack a truck full of meat, what do you do?
I have some ideas for what's likely to happen, obstacles, moral dilemmas, etc, and I try to figure out how players may react to things, so I have some foreshadowing for complications likely to result from those paths. But if players just go off the rails or back out of the plot, or are just so overpowered that any realistic challenge for the scenario I set up is trivial, I just try to make it interesting in some way.
I'm not really providing the roller coaster highs and lows of a well thought-out plot with memorable villains and raised stakes and things like that, but I know my limits. I'm not trying to compete with those, I'm trying to offer an entertaining alternative to coffeeshop RP.