After many failed attempts, I finally managed to make it through the time trial for the Lost Valley, with just a minute and a half to spare. Then I beat the time trial for the Coliseum, which wasn't as much of a feat, but still pleasing. I'm trying to finish up the stuff that still needs doing on my main profile, though I have started a fresh one to reacquaint myself with the game.
...I skipped right over the St. Francis Folly time trial because LOL NO. I'm currently dying of the plague, I don't need that sort of aggravation on top of it.